Taiwania, 54(3): 219-225, 2009
Two New Kaempferia L. (Zingiberaceae) from Southern Laos
Chayan Picheansoonthon(1,2*) and Supachai Koonterm(2)
1. The Academy of Science, The Royal Institute of Thailand, Sanam Suea Pa, Sriayudhaya Road, Khet Dusit, Bangkok 10300,
Thailand.
2. Pharmaceutical Botany and Pharmacognosy Research Unit, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon
Kaen 40002, Thailand.
* Corresponding Author. Email: chayan@kku.ac.th
(Manuscript received 16 November 2008; accepted 20 January 2009)
ABSTRACT: Two new Kaempferia species (Zingiberaceae), K. gigantiphylla and K. attapeuensis, from Southern Laos, is
described and illustrated. Relationship with their closely related taxa is also discussed.
KEY WORDS: new species, Kaempferia gigantiphylla, Kaempferia attapeuensis, Zingiberaceae, Southern Laos.
INTRODUCTION
In continuation of our long time investigation of the
medicinal plant genus Kaempferia L. (Zingiberaceae) in
Thailand, we have extended our fieldwork beyond the
political boundary into Lao PDR in order to understand
the biogeography of this plant group. Among the 16 taxa
recently recognized for Thailand (Picheansoonthon and
Koonterm, 2008), at least 13 species were native to
Northeastern Thailand, and at least 10 taxa can be found
along the Thai-Lao border. Therefore the presence of the
taxa previously assumed to be the Thai endemisms are
expected to be also found across the Mekhong River into
Laos. As the result from our field experiences, K.
larsenii Sirirugsa and K. filifolia K. Larsen, are the good
examples.
During our intensive fieldwork in Laos since 2004,
we have encountered several undescribed taxa additional
to the 8 taxa preliminarily listed for Laos (Newman et al.,
2007). Two new taxa, K. chayanii Koonterm and K.
champasakensis Picheans. & Koonterm, were recently
reported consecutively (Koonterm, 2008; Picheansoonthon & Koonterm, 2008). In this paper, we further
recognized 2 more new taxa, K. gigantiphylla Picheans.
& Koonterm and K. attapeuensis Picheans. & Koonterm,
both from Southern Laos. With these 2 new taxa, 12
Kaempferia species were now formally enumerated for
Lao. The relationship to other closely related taxa is also
discussed.
TAXONOMIC TREATMENTS
1. Kaempferia gigantiphylla Picheans. & Koonterm, sp.
nov.
Figs. 1 & 2
Type: Lao PDR, Salawan Province, Tad Loa
Waterfalls, N 15° 27.363' E 106o 44.120', alt. 482 m, 4
July 2007, Picheansoonthon & Koonterm 117 (holotype
BKF, isotypes BK, SING).
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Kaempferiae siamensi similis, foliis supra conspicue
nervosis, utrimque pubescentibus, ad 27.3-41.3 cm longis
15-30.2 cm latis, pedunculo ad 3.2 cm longo, bracteis
oblongis ad triangularibus pubescentibus, bracteolis
sparse pubescentibus, calycis tubo corollae tubo multo
breviore pubescenti, corollae tubo sparse pubescenti,
antherae crista ovata ad suborbiculari apice rotundato vel
emarginato, ovario pubescenti differt (Table 1).
Perrenial herb, rhizome bearing several tuberous
roots. Leaves usually solitary, sessile; blade horizontal,
near the ground, suborbicular to orbicular, both surfaces
hairy, upto 27.3-41.3 x 15.0-30.2 cm, the base rounded or
subcordate, apex rounded or mucronate; leaf-sheath 4-6
cm long, glabrous; bladeless sheath ca. 6 cm long,
glabrous; ligule inconspicuous. Inflorescence enclosed in
the two innermost leaf sheaths, peduncle to 3.2 cm long;
flowers 10-13. Bracts oblong to triangular, 1.7-2.9 x 4-8
mm, apex acute, hairy; bracteoles 2, attached to the base
on both side of the ovary, ca. 1.7 x 2.5 mm, apex subacute
to rounded, sparsely hairy. Calyx tubular, 2.7-3.2 cm
long, split on one side to 0.7-1.0 cm deep, hairy, apex
acute. Collora tube 3.2-4.2 cm long, sparsely hairy, dorsal
lobe narrowly lanceolate, hooded with apex produced
into ca. 0.5 mm thorn-like point, 1.9-2.6 x 3 mm, lateral
lobes ligulate, 2.0-2.3 x 2 mm, apex hooded, glabrous.
Staminodes pure white, lanceolate to elliptic, 1.6-1.8 x
5-7 mm, apex rounded; Labellum oblanceolate, white
with purple blotch near the apex and purple lines down
to the base, 2.0-2.3 x 8 mm, divided to the middle,
each lobe broadly obovate to suborbicular, 5-7 x 4-5
mm long. Stamen with filament c. 3 mm long, anther ca.
4-7 mm long, anther crest ovate to suborbicular, apex
rounded or emarginated, ca. 3 x 2 mm. Ovary ca. 5 x 2
mm, hairy, 3-locular, ovules several, the placentation
axile; stigma funnel-shaped. Fruits fleshy, cylindric to
ovate, greenish, ca. 2.3 x 3 mm. Seeds many, dull
greenish to light yellow, narrowly ellipsoid to deltoid, ca.
5 x 3-4 mm, hairy, with white aril at the base.
Taiwania
Vol. 54, No. 3
Fig. 1. Kaempferia gigantiphylla Picheans. & Koonterm. A: Habit. B: Rhizomes, roots and lower part of thr pseudostem.
C: A flower. D, E: Bracts. F, G: Bracteoles. H: Ovary and calyx tube. I: Dorsal corolla lobe. J, K: Lateral corolla lobes. L,
M: Lateral staminodes. N: Labellum. O: Anthers, stigma and anther crest. P: Different form of the anther crest. Q:
Ovary with part of a style and the stylodes. R, S: Side view (R) and rear view (S) of the stylodes (drawn from living
specimens by Chalermchoke Boonchit).
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September 2009
Picheansoonthon and Koonterm: Kaempferia (Zingiberaceae)
A
B
C
D
E
F
Fig. 2. Kaempferia gigantiphylla Picheans. & Koonterm. A: The plant habit. B: Leaves. C, D, E: Different views of a
flower. F: a flower showing bract and bracteoles, and a fruit (photographed by Chayan Picheansoonthon).
Distribution: This new species is known from
several location in Southern Laos from Champasak
(from foothill of Phu Kang Huaen to Phu Sawan) to
Attapeu Provinces (foothill of the Bolaven Plateau).
Ecology: In sandy soil or on rocks, under the
shade in dry evergreen forest or lower montane scrub,
from the altitude of 88 to 696 m.
Vernacular Name: Pro Bai Yak, Toobmoob Bai
Yak.
Uses: Medicinal.
Other materials studied: Lao PDR, Attapeu
Province, Ban Kasome, on the foothill of the Bolaven
Plateau, N 14° 50.167' E 106° 57.515', alt. 88 m, 26
April 2008, Picheansoonthon & Koonterm 219 (BK);
Lao. PDR, Champasak Province, Phu Sawan, N
15°23.355' E 105°41.318', alt. 696 m, 14 June 2007,
Picheansoonthon & Koonterm 105 (BK).
Note: Among the Kaempferia species known for
Indochina, only K. siamensis Sirirugsa generally has only
one leaf. This new taxon is the second species of the
Kaemferia recognized with only one leaf. It can be easily
distinguished by its single large (to 27.3-41.3 by
15.0-30.2 cm) prominently-veined leaves, both surface
hairy; peduncle to 3.2 cm long; bracts oblong to
triangular, hairy; bracteoles sparsely hairy; calyx tube
much shorter than corolla tube, hairy; collora tube
sparsely hairy; anther crest ovate to suborbicular, apex
rounded or emarginated; and hairy ovary.
2. Kaempferia attapeuensis Picheans. & Koonterm, sp.
nov.
Figs. 3 & 4
Type: Lao PDR, Attapeu Province, Ban Udomxai, N
14°45.167' E 106°60.415', alt. 80 m, 5 July 2007,
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Vol. 54, No. 3
Fig. 3. Kaempferia attapeuensis Picheans. & Koonterm. A: Habit. B: A flower. C: Bracts. D, E: Bracteoles. F: Ovary and
calyx tube. G: Dorsal corolla lobe. H, I: Lateral corolla lobes. J, K: Lateral staminodes. L: Labellum. M: Anthers, stigma
and anther crest. N-U: various shapes of the anther crests. V: Ovary with part of the style and the stylodes. W, X: side
view (W) and rear view (X) of the stylodes. (drawn from living specimens by Chalermchoke Boonchit).
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September 2009
Picheansoonthon and Koonterm: Kaempferia (Zingiberaceae)
A
B
C
D
Fig. 4. Kaempferia attapeuensis Picheans. & Koonterm. A: Habit. B: Leaves and flowers. C: Detail of the flowers. D: The
infructescence, a fruit and seeds (photographed by Chayan Picheansoonthon)
Picheansoonthon & Koonterm 123 (holotype BKF,
isotype BK, SING).
Kaempferiae larsenii similis, foliis interdum
solitariis vulgo binis oblongo-ellipticis ad late ovatis
apice non cucullato margine paulo undulato ad undulato,
pedunculo ad 1.7 cm longo, bractea calyce breviore,
antherae crista ovata obovatove vel rectangulari 3-4 m
longa 2-5 mm lata, apice variabili e bilobato ad bifido
lobis rotundatis ad acuminatis differt (Table 2).
Perennial herb, rhizome slender, long creeping,
bearing several roots in a fascicle. Leaves (1-)2, sessile,
blade horizontal near the ground or erect 30°-80° above
the ground, oblong-elliptic to broadly ovate, 1.3-12.4 x
7.1-13.9 cm, base attenuate to cuneate, margin slightly
undulate to undulate, apex acute, both surfaces glabrous;
leaf-sheaths 1.2-3.1 cm long, glabrous; bladeless sheath
2-3, 0.5-2 cm long, glabrous, the upper one sometimes
with
reduced
lamina;
ligule
inconspicuous.
Inflorescence sessile to pedunculated, peduncle up to
1.7 cm long, embedded in the two innermost leaf
sheaths; flowers 3-13. Bracts 1, lanceolate to triangular,
1.8-3.0 x 3-5 mm, apex acute. Bracteoles 2, linear,
1.3-2.0 x 1 mm, apex acuminate, glabrous. Calyx tubular,
2.4-3.2 cm long, split on one side, 0.8-1 cm long,
glabrous, apex bifid. Corolla tube, 4.2-5.7 cm long,
whitish, glabrous; dorsal corolla lobe narrowly
lanceolate, 1.8-2.2 x 3 mm, apex acute; lateral corolla
lobes narrowly lanceolate, 1.6-2.1 x 2 mm, apex acute.
Staminodes lilac, broadly obovate, 2-2.6 x 0.7-1.8 cm.
Labellum lilac, broadly obovate, 2.3-2.8 x 1.8-2.3 cm,
divided to the base, each lobe obovate,1.7-2 x 0.8-1.8
cm. Stamen sessile, anther 2-4 mm long, anther crest
ovate, obovate or regtangular, 2-5 x 3-4 mm, apex varied
from bifid to bilobe with the apex of each lobe round to
acuminate. Stigma funnel-shaped. Ovary cylindrical 3-4 x
2 mm, glabrous, 3-locular, placentation axile, ovules
many; stylode 1, filiform, very slender, 4-5 mm long.
Fruits fleshy, obovate-oblong to oblong, ca. 1.3 x 7 mm.
Seeds many, narrowly ellipsoid to deltoid, brownish, 2-3
x 1-2 mm; capped with whitish aril.
Distribution: This new species is known from several
locations in Attapeu Province of Lao PDR.
Ecology: In sandy soil in lowland dry deciduous
forest or dry evergreen forest, from the altitude of 88 to
590 m.
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Vol. 54, No. 3
Table 1. Morphological comparison between K. siamensis Sirirugsa and K. gigantiphylla Picheans. & Koonterm
Characters
1. Leaves
surface
size
2. Inflorescence
peduncle
bracts
bracteoles
calyx tube
corolla tube
anther crest
ovary
K. siamensis
K. gigantiphylla
both surfaces glabrous
6.2-15.4 x 6–14.5 cm
upper surface prominently veined, both surface hairy
to 27.3-41.3 x 15-30.2 cm
- (sessile)
lanceolate, glabrous
glabrous
glabrous
glabrous
deeply bilobed, the lobe lanceolate
glabrous
to 3.2 cm long
oblong to triangular, hairy
sparsely hairy
hairy
sparsely hairy
ovate to suborbicular, apex rounded or emarginated
hairy
Table 2. Morphological comparison between K. larsenii Sirirugsa and K. attapeuensis Picheans. & Koonterm
Characters
1. Leaves
number
shape
petiole
apex
margin
2. Inflorescence
peduncle
anther crest
K. larsenii
K. attapeuensis
(1-)2
elliptic-linear to linear
0.7-1.2 cm
hooded
entire
2-4
oblong-elliptic to broadly ovate
- (sessile)
not hooded
slightly undulate to undulate
(sessile)
obovate, the apex rounded, entire or slightly
crenate
to 1.7 cm long
ovate, obovate, or regtangular, apex varied from bilobe to
bifid with the apex of each lobe round to acuminate
Vernacular Name: Toobmoob Dok Muang, Wan
Toobmoob
Uses: Medicinal.
Other materials studied: Lao PDR, Attapeu
Province, Ban Kasome, on the foothill of the Bolaven
Plateau, N 14° 50.167' E 106° 57.515', alt. 88 m, 5 July
2008, Picheansoonthon & Koonterm 229 (BKF).
Note: This new species is the closest to K. larsenii
Sirirugsa distributed in Eastern Thailand (Changwat
Ubon Ratchathani) and across the Mekhong River in
Northern Part of the Champasak Province (Xanasombun
Town) of Lao PDR. Both species are violet-flowered,
however, the two taxa are different in both vegetative
and floral morphology, as shown in Table 2.
Comparing with K. larsenii, this new taxon is
greatly variable in shape, size, and orientation of the
leaves. Leaves of the prior species is radical, petiolated,
elliptic-linear to linear, and upright from the ground. The
latter species, however, is with sessile, oblong-elliptic to
broadly ovate, horizontal near the ground or upright
leaves. Anther crest of K. attapeuensis is also varied
greatly, ranged from the rectangular shape with the apex
varied from bilobed (the apex of each lobe round to
acuminate) to bifid.
ACKNOWLEDGEMENTS
This research project is a part of the five-year project
entitled “Studies on fundamental botanical knowledge and
DNA fingerprints of the Thai medicinal wan”, financially
supported by the Thai Traditional Medical Knowledge Fund of
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the Ministry of Public Health. The author would like to thank
Dr. J. F. Veldkamp (Leiden) for the Latin diagnosis, staffs of K,
P, SING, BK, BKF, PSU and QBG for herbarium accesses,
staffs of our research group: Mr. C. Boonchit, Mr. J. Mayoe, Mr.
P. Yupparach, Mr. V. Karndee and Miss. P. Wongsuwan for
field assistances, and our Laotian research partners, Mr. K.
Deelert and Mr. T. Boonmee
LITERATURE CITED
Koonterm, S. 2008. Kaempferia chayanii (Zingiberaceae), a
new species from Southern Laos. Folia malaysiana 9: 17-22.
Newman M., S. Ketphanh, B. Svengsuksa, P. Thomas, K.
Sengdala, V. Lamxay and K. Armstrong. 2007. A
checklist of the vascular plants of Laos PDR. Royal Botanic
Garden Edinburgh,Edinburgh. pp. 364-365.
Picheansoonthon C. and S. Koonterm. 2008. Notes on the
genus Kaempferia L. (Zingiberaceae) in Thailand. J. Thai
Trad. Alt. Med. 6: 27-51.
Picheansoonthon C. and S. Koonterm. 2008. A New Species
of Kaempferia (Zingiberaceae) from Southern Laos.
Taiwania 53: 406-409.
September 2009
Picheansoonthon and Koonterm: Kaempferia (Zingiberaceae)
寮國南部薑科山奈屬植物二新種
Chayan Picheansoonthon(1,2*) and Supachai Koonterm(2)
1. The Academy of Science, The Royal Institute of Thailand, Sanam Suea Pa, Sriayudhaya Road, Khet Dusit, Bangkok 10300,
Thailand.
2. Pharmaceutical Botany and Pharmacognosy Research Unit, Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon
Kaen 40002, Thailand.
* Corresponding Author. Email: chayan@kku.ac.th
(收稿日期:2008 年 11 月 16 日;接受日期:2009 年 1 月 20 日)
摘要:本文描述並繪圖介紹寮國南部薑科山奈屬 (Kaempferia L.) 植物二新種:巨葉山奈
(Kaempferia gigantiphylla) 及阿塔蒲山奈 (Kaempferia attapeuensis),文中也探討與相近種的
關係
關鍵詞:新種 巨葉山奈 (Kaempferia gigantiphylla) 阿塔蒲山奈 (Kaempferia attapeuensis)
薑科 寮國
225