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mountain death camas, zigadène élégant

green death camas

Habit Plants 2–8 dm, from bulbs; bulbs not clumped, tunicate, narrowly ovoid, 1.5–3 × 1–2 cm. Plants 3.5–8.5 dm, from bulbs; bulbs not clumped, tunicate, narrowly ovoid, 3–5 × 1–1.5 cm.
Stems

without persistent leaf bases.

Leaves

proximal blades 10–30 cm × 3–15 mm.

proximal blades 25–45 cm × 3–20 mm.

Inflorescences

loosely racemose to paniculate, 10–50-flowered, with 1–4 branches, 0.9–2.5 dm × 3–6 cm.

racemose to paniculate, 15–30-flowered, with 1–4 branches.

Flowers

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.

nodding;

perianth perigynous, campanulate, 4–8 mm diam.;

tepals greenish, sometimes tinged with purple, ovate, 4–6 × 1.5–3 mm, somewhat narrowed at base, apex narrowly obtuse;

gland 1, obcordate, thick;

pedicel recurved at anthesis, 1.5–2 cm, bracts often tinged with purple or pink, ovate, 5–20 mm.

Capsules

narrowly conic, 10–20 mm.

narrowly conic, 10–20 mm.

2n

= 32.

= 32.

Zigadenus elegans

Zigadenus virescens

Phenology Flowering Jun–Aug. Flowering Jul–Aug.
Habitat Moist grasslands, river and lake shores, bogs in coniferous forests Montane coniferous forests
Elevation 0–3600 m (0–11800 ft) 1000–3200 m (3300–10500 ft)
Distribution
from FNA
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
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from FNA
AZ; CO; NM; s Mexico
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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. FNA vol. 26, p. 87.
Parent taxa Liliaceae > Zigadenus Liliaceae > Zigadenus
Sibling taxa
Z. brevibracteatus, Z. densus, Z. exaltatus, Z. fontanus, Z. fremontii, Z. glaberrimus, Z. micranthus, Z. mogollonensis, Z. nuttallii, Z. paniculatus, Z. vaginatus, Z. venenosus, Z. virescens
Z. brevibracteatus, Z. densus, Z. elegans, Z. exaltatus, Z. fontanus, Z. fremontii, Z. glaberrimus, Z. micranthus, Z. mogollonensis, Z. nuttallii, Z. paniculatus, Z. vaginatus, Z. venenosus
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 Helonias virescens, Anticlea mexicana, Anticlea virescens, Z. mexicanus, Z. porrifolius, Z. virescens var. porrifolius
Name authority Pursh: Fl. Amer. Sept. 1: 241. (1814) (Kunth) J. F. Macbride: Contr. Gray Herb. 53: 4. (1918)
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