Zigadenus paniculatus |
Zigadenus micranthus |
|
---|---|---|
foothill death camas, sand-corn |
small-flower death camas |
|
Habit | Plants 2–7 dm, from bulbs; bulbs not clumped, tunicate, ovoid, 18–40 × 12–35 mm. | Plants 1–7 dm, from bulbs; bulbs not clumped, tunicate, ovoid, 10–35 × 8–30 mm. |
Leaves | proximal blades 15–35 cm × 3–15 mm. |
proximal blades 12–45 cm × 2–10 mm. |
Inflorescences | paniculate, 10–80-flowered, narrow, terminal raceme pyramidal in anthesis, 2–30 × 2–4 cm, proximal branches usually less than 6 cm, 1/10–1/2 length of entire inflorescence, diverging from main axis at 10°–60° when in fruit. |
usually paniculate with 1–5 branches, occasionally racemose, 10–60-flowered, narrow, terminal raceme often pyramidal in early anthesis, 3–40 × 3–7 cm, proximal branches 2–13 cm, 1/10–1/2 length of entire inflorescence, diverging from main axis at 60°–90° when in fruit. |
Flowers | perianth hypogynous, campanulate, 5–10 mm diam.; tepals persistent in fruit, cream colored, ovate, 2–5 × 1–4 mm, outer usually not clawed, apex usually acute; gland 1, obovate, distal margins evident to obscure, irregular; filaments straight, usually equaling tepals, occasionally longer, thickened proximally; pedicel ascending to perpendicular to stem in fruit, 3–25 mm, bracts green, lanceolate, 5–15 mm. |
perianth hypogynous, campanulate, 5–12 mm diam.; tepals persistent in fruit, cream colored, 3–8 × 1–4 mm, outer sometimes with basal claw to 5 mm, usually with acute apex; gland 1, obovate, distal margins evident, dentate; filaments straight, ± equaling tepals or rarely longer, thickened proximally; pedicel usually perpendicular to stem in flower and in fruit, 12–40 mm, bracts white and membranous to green and foliaceous, narrowly lanceolate, 5–40 mm. |
Capsules | 5–20 × 3–8 mm. |
6–18 × 2–7 mm. |
2n | = 22. |
= 22. |
Zigadenus paniculatus |
Zigadenus micranthus |
|
Phenology | Flowering Apr–Jun. | Flowering Apr–Jul. |
Habitat | Sagebrush desert, dry open inland grasslands | Serpentine hillsides |
Elevation | 1300–2600 m (4300–8500 ft) | 0–1000 m (0–3300 ft) |
Distribution |
AZ; CA; CO; ID; MT; NM; NV; OR; UT; WA; WY
|
CA; OR
|
Source | FNA vol. 26, p. 85. | FNA vol. 26. |
Parent taxa | Liliaceae > Zigadenus | Liliaceae > Zigadenus |
Sibling taxa | ||
Synonyms | Helonias paniculata, Toxicoscordion paniculatum | Toxicoscordion micranthum, Z. venenosus var. micranthus |
Name authority | (Nuttall) S. Watson: Botany (Fortieth Parallel), 343. (1871) | Eastwood: Bull. Torrey Bot. Club 30: 483. (1903) |
Web links |