Veratrum album var. oxysepalum

(Turczaninow) Miyabe & Kudô

in K. Miyabe and T. Miyake, Fl. Saghalin, 484. 1915.

Basionym: Veratrum oxysepalum Turczaninow Bull. Soc. Imp. Naturalistes Moscou 13: 79. 1840
Treatment appears in FNA Volume 26. Treatment on page 76. Mentioned on page 73.
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Stems 0.3–1 m, glabrous proximally, villous in inflorescence. Leaves basal and proximal cauline ovate to elliptic, 10–25 × 5–18 cm, reduced distally, glabrous to sparsely villous at least on veins. Inflorescences spiciform-racemose or with few, short, ascending branches proximally, 0–10 cm, sparsely villous; bracts lanceolate, 1/2 as long as to equaling flowers, sparsely villous, ciliate. Tepals yellowish green, lanceolate to lance-ovate, not clawed, 7–12 mm, margins denticulate, sparsely villous at least in proximal 1/2; gland 1, basal, green to yellowish green, V-shaped; ovary subglabrous. Capsules elliptic to oblong, 1–1.5 cm, subglabrous. Seeds flat, broadly winged, 5–7 mm. 2n = 64.


Phenology: Flowering early summer–late fall.
Habitat: Wet, marshy soils in mesic tundra and Salix thickets
Elevation: 0–1000 m

Distribution

V26 63-distribution-map.jpg

Alaska, ne Russia, n Japan (Hokkaido).

Discussion

Selected References

None.

Lower Taxa

None.
Dale W. McNeal Jr. +  and Aaron D. Shaw +
(Turczaninow) Miyabe & Kudô +
Veratrum oxysepalum +
Alaska +, ne Russia +  and n Japan (Hokkaido). +
0–1000 m +
Wet, marshy soils in mesic tundra and Salix thickets +
Flowering early summer–late fall. +
in K. Miyabe and T. Miyake, Fl. Saghalin, +
Acelidanthus +, Evonyxis +  and Leimanthium +
Veratrum album var. oxysepalum +
Veratrum album +
variety +