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Siskiyou false-hellebore, Siskiyou wild hellebore

California corn lily, California false hellebore, false-hellebore


1–1.5 m, grayish-hairy distally.

1–2.5 m, ± glabrous proximally, tomentose distally.


blades elliptic, distal lanceolate, 10–35 × 7–21 cm, reduced distally, grayish-hairy, at least when young.

ovate, distalmost lanceolate to lance-linear, 20–40 × 15–25 cm, reduced distally, tomentose-ciliate, curly-hairy abaxially, glabrous or veins sparsely short-hairy adaxially.


paniculate, with ascending branches, 20–50 cm, grayish-hairy;

bracts ovate to lanceolate, shorter than flowers.

dense-paniculate, with spreading to stiffly erect branches to near tip or distal 1/3–1/2 unbranched, 30–70 cm, tomentose;

bracts ovate-elliptic to lanceolate, shorter than to obviously longer than flowers.


oblong-ovoid, 2–3 cm, densely tomentose.

narrowly ovoid, 2–3 cm, glabrous.


flat, broadly winged, 10–15 mm.

flat, winged, 10–12 mm.


creamy white to yellow, broadly ovate, not clawed, 6–15 mm, margins strongly erose-ciliate or inner shallowly fimbriate;

gland 1, basal, green, V-shaped, elliptic;

ovary densely tomentose;

pedicel 6–15 mm.

creamy white, greenish basally, lanceolate to elliptic or oblong-ovate, not or very slightly clawed, 8–17 mm, margins entire to denticulate, glabrous to abaxially tomentose;

gland 1, basal, green, V-shaped;

ovary glabrous or with few hairs;

pedicel 1–6 mm.


= 32.

Veratrum insolitum

Veratrum californicum

Phenology Flowering summer–fall.
Habitat Stream banks, moist meadows, mixed-evergreen forest margins
Elevation 0–1500 m [0–4900 ft]

The only other whitish-flowered species in North America, Veratrum californicum, which might be confused with V. insolitum, has entire, unfringed tepals, and only slightly hairy ovaries.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Varieties 2 (2 in the flora).

Different geographic elements of Veratrum californicum have been described as separate species or varieties. The variation seems to be clinal, with most variants not consistent in their appearance or distribution. We have recognized two varieties that appear to be fairly consistent in their distributions and characteristics.

Western Native Americans (Blackfeet, Paiute, Shoshone, Thompson, and Washoe) used this species as an antirheumatic, poison, contraceptive, and emetic, as well as a skin, respiratory, blood, cold, snake bite, throat, and toothache aid (D. E. Moerman 1986).

(Discussion copyrighted by Flora of North America; reprinted with permission.)

from FNA
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from USDA
w North America
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Parent taxa Liliaceae > Veratrum Liliaceae > Veratrum
Sibling taxa
V. album, V. californicum, V. fimbriatum, V. viride
V. album, V. fimbriatum, V. insolitum, V. viride
Subordinate taxa
V. californicum var. californicum, V. californicum var. caudatum
1.Panicle branched more than 2/3 length of tip; bracts in unbranched portion ovate-elliptic, seldom exceeding flowers.V. californicum var. californicum
1.Panicle unbranched in distal 1/3–1/2; bracts in proximal unbranched portion lanceolate, frequently 2–3 times longer than flowers.V. californicum var. caudatum
Name authority Jepson: Fl. Calif. 1: 266. (1921) Durand: J. Acad. Nat. Sci. Philadelphia, ser. 2, 3: 103. (1855)
Source Flora of North America vol. 26, p. 74. Flora of North America vol. 26, p. 75.
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