Rubus hispidus (Bristly dewberry, swamp dewberry, bristly blackberry)

Family: Rosaceae

(Hipsidus photo by Marilee Lovit, from GoBotany.

(Hispidus photo by Merel Black, from GoBotany.

From GoBotany: “Bristly blackberry is a common trailing species partial to wet habitats. Its arching stems bear three-parted compound leaves and are armed with numerous bristles that are narrow at the base. The stems can root at the tips, producing new stems. The fruits of bristly blackberry are eaten by many species of birds.”

So there’s a somewhat similar-looking creeping plant called Rubus flagellaris (Northern dewberry).

(Flagellaris photo by Glen Mittelhauser, from GoBotany.)

Here’s some tips from one of my botany instructors, Robin, on telling the difference between the two plants:

*Rubus hispidus has shiny leaves, flagellaris doesn’t.

*Flagellaris has recurved thorns and will rip up your leg if you try and walk through it. That plant is out to get you. (The last sentence is from me.) Actually, young flagellaris can look/feel a little like hispidus, with delicate softish thorns. But generally, if you try and grab the stem of a flagellaris, it’s not pleasant.

I don’t even need to post a full mnemonic for Rubus flagellaris. Flagillating flagellaris. Done.

Anyway, here’s a doodle I drew to remember Rubus hispidus.

Other mnemonic notes

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Robinia pseudoacacia (Black locust)

Family: Fabaceae

(Photo by Frank Bramley, from GoBotany)

http://www.carolinanature.com/trees/rops.html

Thorns!

From GoBotany: “Black locust is native to parts of North America, but has greatly increased its range, being widely planted as a hardy street three and for erosion control. It has an upright, narrow crown, widest at the top, producing masses of white, fragrant pea-like flowers that mature into flat pods in the fall. The ropy brown bark and red spines that line the new shoots also distinguish this locust from its relatives. Black locust thrives on nutrient-poor sites because it teams up with a bacterium that fixes nitrogen from the soil. Because it suckers readily and spreads widely, it has become invasive in certain portions of its range.”

So this is what an actual acacia tree looks like:

https://thenaturalhistorian.com/2017/01/23/on-the-origin-of-thorns-the-prelapsarian-acacia-and-the-good-creation/

“Pseudoacacia” is a pretty good name.

“Fabaceae” is the family of peas. It blew my mind that everything from little sensitive peas (Chamaecrista fasciculata) to clovers (Trifolium) to these great big thorny Black locusts are in the same family. But they do all have that pea flower, in some form or another. “The fabulous fabaceae” is an easy mnemonic.

Anyway, so here’s the comic I drew for myself in order to memorize the full name (Robinia pseudoacacia, Black locust, family Fabaceae).

Comptonia peregrina (Sweet fern)

Family: Myricaceae

Note: this is not a fern! It sort of looks like one, but it’s not! And that’s why common names are sometimes not helpful.

(Photo by Arthur Haines, from GoBotany)

From GoBotany: “One sniff of the pungent, turpentine-like aroma given off by the crushed leaves of this 3-foot (1m) tall shrub, and its common name, sweet-fern, will become clear. Sweetfern fixes nitrogen through a close partnership with bacteria; thus, this plant is among the first to colonize barren, nutrient-poor soils.”

This is a dry area plant. I’ve seen this as an ornamental plant in public spaces, too. If you find a sweet fern, crush a leaf and smell it, it’s really nice!

Anyway, here’s my doodle for learning the plant name.

Smilax glauca (Cat greenbrier, glaucous-leaved greenbriar)

Family: Smilacaceae

(Photo by Arthur Haines from GoBotany.)

From GoBotany: “Glaucus-leaved greenbriar is a climbing, prickly vine with bluntly triangular leaves that have three prominent, parallel veins and a white (glaucous) bloom on the undersides. Birds eat the berries, particularly in winter.”

“Smilax”  – So I already knew “Smilax” because I had a field crew leader who would get tangled in greenbriar and yell at the plant, “Smilax, stop smilax-ing!” This happened enough times that I remembered the general plant name “smilax”.

“Glauca” – Almost the same “glaucus”, or when plants have a pale whitish or greenish-whitish color. Sort of waxy, can rub off. AKA the color of the underside of cat greenbrier leaves, as mentioned. AKA Glaucus, Greek sea-god, apparently (on googling it).

Just to drive home the point, I doodled a glaucous-colored cat with dark-green cat greenbrier ears.

Osmunda regalis (Royal fern)

Family: Osmundaceae

(Photo By Glen Mittelhauser from GoBotany)

From GoBotany: “Royal fern is a cosmopolitan species, and may be the only vascular plant found on all seven continents. It is common throughout New England in swamps, shorelines and riparian forests. The ferile* pinnae of royal fern rise above the sterile pinnae, looking somewhat like a crown, hence the name.”

(*ferile? They probably meant fertile?)

This is a pretty distinct-looking fern. I, for one, would wear it taped to my head and walk around being regal. Or make a crest or herald of it. Anyway, so here’s a character named Osmunda / Osmund who is being regal.

Family name is Osmundaceae, that’s pretty straightforward.