Zigadenus vaginatus

(Rydberg) J. F. Macbride

Contr. Gray Herb. 53: 4. 1918.

Common names: Sheathed death camas
EndemicConservation concern
Basionym: Anticlea vaginata Rydberg Bull. Torrey Bot. Club 39: 108. 1912
Treatment appears in FNA Volume 26. Treatment on page 87. Mentioned on page 82.

Plants 4–6 dm, from bulbs; bulbs not clumped, tunicate, narrowly ovoid, 3–6 × 1.5–3 cm. Stems with persistent leaf-bases proximally. Leaves: proximal blades 25–40 cm × 5–12 mm. Inflorescences paniculate, 15–30-flowered, with 1–4 branches, 1.5–3 dm × 3–6 cm, proximal branches 7–8 cm. Flowers: perianth perigynous, rotate to rotate-campanulate, 10–15 mm diam.; tepals white, ovate, 3–6 × 3–4 mm, somewhat narrowed at base, apex broadly rounded; gland 1, obcordate, thick; pedicel ascending at anthesis, 1–1.5 cm, bracts often streaked with purple, ovate, 3–6 mm. Capsules narrowly conic, 7–8 mm. 2n = 32.


Phenology: Flowering Aug.
Habitat: Wet sandstone ledges of canyons, “hanging garden” community
Elevation: 1100–1900 m

Discussion

Of conservation concern.

Selected References

None.

Lower Taxa

None.

"broad" is not a number."dm" is not declared as a valid unit of measurement for this property. "dm" is not declared as a valid unit of measurement for this property."thicker" is not a number.

... more about "Zigadenus vaginatus"
introrse +, extrorse +  and transverse +
reniform +
rounded +
Fayla C. Schwartz +
(Rydberg) J. F. Macbride +
whorled +, opposite +  and alternate +
dilated +
Anticlea vaginata +
reticulate-veined +  and parallel-veined +
streaked with purple +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
1 +  and 4 +
not clumped +
3cm +  and 6cm +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Sheathed death camas +
Colo. +  and Utah. +
1100–1900 m +
connate-coroniform +  and dilated +
staminate +  and pedicellate +
protandrous +  and bisexual +
loculicidal +  and septicidal +
membranaceous +  and leathery +
obcordate +
Wet sandstone ledges of canyons, “hanging garden” community +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
persistent +
many;several +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
cream colored +  and greenish or red tinged +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
rotate;rotate-campanulate +
Flowering Aug. +
tapering +
25 cm250 mm <br />0.25 m <br /> (40 cm400 mm <br />0.4 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Contr. Gray Herb. +
contractile +
ellipsoid +
wind-distributed +
2 +  and 20 +
flattened +  and elongate +
Endemic +  and Conservation concern +
adnate +  and free +
staminodial +
rudimentary +
barely larger +
Anticlea +, Chitonia +, Cyanotris +, Oceanoros +, Toxicoscordion +  and Tracyanthus +
Zigadenus vaginatus +
Zigadenus +
species +
narrowed +  and ovate +
3mm;4mm +
sepaloid +  and petaloid +
narrower +
rhizomatous +, bulbous +  and subscapose +
3 +  and 2 +
26 +, 11 +  and 8 +