Zigadenus glaberrimus |
Zigadenus elegans |
|
---|---|---|
sandbog death camas |
mountain death camas, zigadène élégant |
|
Habit | Plants 6–12 dm, from thick, twisted rhizomes. | Plants 2–8 dm, from bulbs; bulbs not clumped, tunicate, narrowly ovoid, 1.5–3 × 1–2 cm. |
Stems | without persistent leaf bases. |
|
Leaves | blade sometimes becoming reddish brown with age, 19–42 cm × 5–20 mm, glaucous abaxially. |
proximal blades 10–30 cm × 3–15 mm. |
Inflorescences | loosely paniculate, 30–75-flowered, with 2–6 ascending branches, pyramidal, 10–60 × 5–12 cm. |
loosely racemose to paniculate, 10–50-flowered, with 1–4 branches, 0.9–2.5 dm × 3–6 cm. |
Flowers | perianth hypogynous, 20–30 mm diam.; tepals persistent in fruit, white to cream colored, ovate to lanceolate, 9–15 × 3–5 mm, somewhat contracted at base; glands 2, elliptic, margins thickened; pedicel bracts ovate, 5–15 mm. |
perianth perigynous, rotate to rotate-campanulate, 15–20 mm diam.; tepals persistent in fruit, cream colored to greenish, ovate, 7–12 × 4–5 mm, somewhat narrowed at base; gland 1, obcordate; pedicel erect at anthesis, 1–2.3 cm, bracts often tinged with purple or pink, ovate, 5–20 mm. |
Capsules | conic, 10–15 mm. |
narrowly conic, 10–20 mm. |
2n | = 52. |
= 32. |
Zigadenus glaberrimus |
Zigadenus elegans |
|
Phenology | Flowering mid Jul–Sep. | Flowering Jun–Aug. |
Habitat | Pine bogs, savannas, sandy pinelands | Moist grasslands, river and lake shores, bogs in coniferous forests |
Elevation | 0–100 m (0–300 ft) | 0–3600 m (0–11800 ft) |
Distribution |
AL; FL; GA; MS; NC; SC; VA
|
AK; AZ; CO; IA; ID; IL; IN; MD; MI; MN; MO; MT; NC; ND; NE; NM; NV; NY; OH; OR; PA; SD; TN; TX; UT; VA; VT; WA; WI; WV; WY; AB; BC; MB; NT; ON; QC; SK; YT; Mexico
|
Discussion | Zigadenus elegans has been treated previously as comprising two varieties, or two subspecies (W. B. Zomlefer 1997b). The western var. or subsp. elegans tends to be a smaller plant with a raceme or a 1–2-branched panicle and glabrous, sometimes glaucous leaves and stems; while the eastern var. or subsp. glaucus tends to be a larger plant with a paniculate inflorescence and glaucous leaves and stems. Because there is considerable evidence of intergradation between the two entities toward the middle of the range, including overlapping flowering times, they have not been formally distinguished here. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 83. | FNA vol. 26. |
Parent taxa | Liliaceae > Zigadenus | Liliaceae > Zigadenus |
Sibling taxa | ||
Synonyms | Anticlea alpina, Anticlea chlorantha, Anticlea coloradensis, Anticlea elegans, Anticlea glauca, Anticlea gracilenta, Anticlea longa, Anticlea mohinorensis, Melanthium glaucum, Z. alpinus, Z. chloranthus, Z. coloradensis, Z. dilatatus, Z. elegans subsp. glaucus, Z. elegans var. glaucus, Z. glaucus, Z. gracilentus, Z. longus, Z. mohinorensis, Z. washakie | |
Name authority | Michaux: Fl. Bor.-Amer. 1: 214, plate 22. (1803) | Pursh: Fl. Amer. Sept. 1: 241. (1814) |
Web links |
|