Veratrum insolitum

Jepson

Fl. Calif. 1: 266. 1921.

Common names: Siskiyou false hellebore
Endemic
Treatment appears in FNA Volume 26. Treatment on page 74. Mentioned on page 73.
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Stems 1–1.5 m, grayish-hairy distally. Leaf-blades elliptic, distal lanceolate, 10–35 × 7–21 cm, reduced distally, grayish-hairy, at least when young. Inflorescences paniculate, with ascending branches, 20–50 cm, grayish-hairy; bracts ovate to lanceolate, shorter than flowers. Tepals 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. Capsules oblong-ovoid, 2–3 cm, densely tomentose. Seeds flat, broadly winged, 10–15 mm. 2n = 32.


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

Discussion

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.

Selected References

None.

Lower Taxa

None.

"broad" is not a number."thick" is not a number."thicker" is not a number.

... more about "Veratrum insolitum"
persistent +
versatile +  and dorsifixed +
cordate-reniform +
Dale W. McNeal Jr. +  and Aaron D. Shaw +
Jepson +
whorled +, opposite +  and alternate +
dilated +
reticulate-veined +  and parallel-veined +
sheathing +  and involucrate +
1;several +
ovate;lanceolate +
tunicate +  and scaly +
oblong-ovoid +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Siskiyou false hellebore +
Calif. +, Oreg. +  and Wash. +
0–1500 m +
sessile +  and pedicellate +
some +  and bisexual +
indehiscent +, septicidal +  and loculicidal +
3-lobed +
membranaceous +  and leathery +
v--shaped +
Stream banks, moist meadows, mixed-evergreen forest margins +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
10 cm100 mm <br />0.1 m <br /> (35 cm350 mm <br />0.35 m <br />) +
veined +  and simple +
persistent +
narrowed +  and orbicular +
reduced +
erose-fimbriate +  and entire +
inferior +  and superior +
many;several +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
zygomorphic +  and actinomorphic +
rotate;more or less campanulate +
Flowering summer–fall. +
contractile +
wind-distributed +
1 +  and many +
ellipsoid +  and fusiform +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
adnate +  and free +
perigynous +
leafy +, hollow +  and simple +
grayish-hairy +
100 cm1,000 mm <br />1 m <br /> (150 cm1,500 mm <br />1.5 m <br />) +
1 +  and several +
elongate +
distinct +
Acelidanthus +, Evonyxis +  and Leimanthium +
Veratrum insolitum +
Veratrum +
species +
creamy white;yellow +
persistent +
distinct +  and weakly connate +
spreading +  and erect +
not clawed +  and ovate +
subequal +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
sepaloid +  and petaloid +
narrower +
caulescent +  and scapose +
3 +  and 2 +