Bistorta plumosa

(Small) Greene

Leafl. Bot. Observ. Crit. 1: 18. 1904.

Basionym: Polygonum plumosum Small Bull. New York Bot. Gard. 2: 166. 1901
Synonyms: Bistorta major subsp. plumosum (Small) H. Hara Polygonum bistorta subsp. plumosum (Small) Hultén Polygonum bistorta var. plumosum (Small) B. Boivin
Treatment appears in FNA Volume 5. Treatment on page 596. Mentioned on page 594.

Plants (8–) 10–40 (–50) cm; rhizomes contorted. Stems 1 (–2). Leaves: ocrea brown, cylindric, 5–40 mm, margins oblique, glabrous; petiole attached to sheath 10–45 mm, unwinged or scarcely winged distally, 30–220 mm; blade lanceolate-elliptic to ovate, 2–12 × 0.5–3 cm, base tapered, rarely truncate, often asymmetric, margins entire, sometimes wavy, apex rounded to acute, abaxial face pubescent with whitish or brownish hairs, glaucous, adaxial face glabrous, not glaucous; cauline leaves 1–3, petiolate proximally, sessile distally, gradually reduced distally, blade triangular-lanceolate to linear. Inflorescences 1, short-cylindric to ovoid, 15–70 × 10–15 mm, bulblets absent; peduncle 1–8 cm. Pedicels ascending or spreading, 2–7 mm. Flowers 1–2 per ocreate fascicle; perianth bright pink or purplish-pink; tepals oblong to elliptic, 3–4 mm, apex obtuse to acute; stamens included or exserted; anthers purple to blackish. Achenes brown, 2.5–4 × 1.2–2 mm, shiny, smooth. 2n = 72.


Phenology: Flowering May–Jun.
Habitat: Fields, meadows, arctic and alpine tundra, heathlands
Elevation: 0-2000 m

Distribution

V5 1212-distribution-map.gif

B.C., N.W.T., Yukon, Alaska, e Asia

Discussion

Leaves of Bistorta plumosa are used as a dietary aid and consumed as a vegetable, and roots are boiled and added to stews by Alaskan Native Americans (D. E. Moerman 1998).

Selected References

None.

Lower Taxa

None.

"/2" is not declared as a valid unit of measurement for this property.

... more about "Bistorta plumosa"
glaucous +  and pubescent +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
exserted +  and included +
3-gonous +
1.2mm;2mm +
not glaucous +  and glabrous +
purple +  and blackish +
ovate +  and elliptic +
Craig C. Freeman +  and Harold R. Hinds† +
(Small) Greene +
asymmetric +  and truncate +
tapered +
Polygonum plumosum +
2 cm20 mm <br />0.02 m <br /> (12 cm120 mm <br />0.12 m <br />) +
triangular-lanceolate;linear +
0.5cm;3cm +
foliaceous +  and perfoliate +
scale-like +
just below the soil surface or and above the soil surface +  and spreading +
sessile +  and petiolate +
B.C. +, N.W.T. +, Yukon +, Alaska +  and e Asia +
0-2000 m +
adnate +, connate +  and distinct +
disarticulating +  and solid +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Fields, meadows, arctic and alpine tundra, heathlands +
brownish +  and whitish +
compound +, branched +  and simple +
short-cylindric +  and ovoid +
nonmembranous +
sessile +  and petiolate +
deciduous +
swollen +
partly +  and foliaceous +
disintegrating +
deciduous +  and persistent +
cylindric +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
coriaceous +  and membranous +
anatropous +, , +  and orthotropous +
spreading;ascending +
accrescent +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
campanulate +
nonaccrescent +
fleshy +, indurate +  and membranous +
winged +  and unwinged +
3 cm30 mm <br />0.03 m <br /> (22 cm220 mm <br />0.22 m <br />) +
Flowering May–Jun. +
(2-)3(-4)-carpellate +
Leafl. Bot. Observ. Crit. +
rhizomatous +
slender;stout +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
exserted +  and included +
5 (?) +  and 8 (?) +
2 +  and 3 +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
? (?) +  and ? (?) +
coriaceous +  and membranous +
connate +  and distinct +
spreading;erect +
Bistorta major subsp. plumosum +, Polygonum bistorta subsp. plumosum +  and Polygonum bistorta var. plumosum +
Bistorta plumosa +
Bistorta +
species +
monomorphic +  and petaloid +
oblong +  and elliptic +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
coriaceous +
persistent +
membranous +
pubescent +  and glabrous +