Amianthium muscitoxicum

(Walter) A. Gray

Ann. Lyceum Nat. Hist. New York 4: 122. 1837.

IllustratedEndemic
Basionym: Melanthium muscitoxicum Walter Fl. Carol., 125. 1788 (as muscaetoxicum)
Synonyms: Chrosperma muscitoxicum (Walter) Kuntze Zigadenus muscitoxicus (Walter) Regel
Treatment appears in FNA Volume 26. Treatment on page 90. Mentioned on page 87.

Stems 3–12 (–14) dm. Leaves 10–45 (–60) × 0.5–2.8 cm. Inflorescences densely ovoid in flower, cylindric in fruit, 3–13 × 2–3 cm; bracts ovate, 1–2 mm. Tepals 5–7 mm; pedicel (7–) 10–17 (–20) mm. Capsules 5–7 mm. Seeds 4–5 × 1.5–2 mm. 2n = 32.


Phenology: Flowering late spring–summer.
Habitat: Dry or mesic wooded slopes, meadows, savannas
Elevation: 0–1500 m

Distribution

V26 94-distribution-map.jpg

Ala., Ark., Del., D.C., Fla., Ga., Ky., La., Md., Miss., Mo., N.J., N.Y., N.C., Okla., Pa., S.C., Tenn., Va., W.Va.

Discussion

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.

... more about "Amianthium muscitoxicum"
cordate-ovate +
reddish green +
acute +, oblong-obovate +, obtuse +  and abruptly acute +
subequal +
Frederick H. Utech +
(Walter) A. Gray +
whorled +, opposite +  and alternate +
dilated +
Melanthium muscitoxicum +
reticulate-veined +  and parallel-veined +
strap--shaped +  and linear-elongate +
sheathing +  and involucrate +
1;several +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (?) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Ala. +, Ark. +, Del. +, D.C. +, Fla. +, Ga. +, Ky. +, La. +, Md. +, Miss. +, Mo. +, N.J. +, N.Y. +, N.C. +, Okla. +, Pa. +, S.C. +, Tenn. +, Va. +  and W.Va. +
0–1500 m +
unisexual +, bisexual +  and both +
cup-shaped +
thin-walled +  and capsular +
loculicidal +  and septicidal +
3-lobed +
membranaceous +  and leathery +
Dry or mesic wooded slopes, meadows, savannas +
3 cm30 mm <br />0.03 m <br /> (?) +  and 13 cm130 mm <br />0.13 m <br /> (?) +
cylindric +  and ovoid +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
45 cm450 mm <br />0.45 m <br /> (60 cm600 mm <br />0.6 m <br />) +
persistent +
10 cm100 mm <br />0.1 m <br /> (45 cm450 mm <br />0.45 m <br />) +
downward +  and arching +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
superior +  and partly inferior +
many;several +
1.7 cm17 mm <br />0.017 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
zygomorphic +  and actinomorphic +
Flowering late spring–summer. +
Ann. Lyceum Nat. Hist. New York +
contractile +
wind-distributed +
brownish +  and purplish black +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
1 +  and 2 +
ellipsoid +
0.15 cm1.5 mm <br />0.0015 m <br /> (?) +  and 0.2 cm2 mm <br />0.002 m <br /> (?) +
Illustrated +  and Endemic +
perigynous +
1 +  and several +
persistent +
distinct +
Chrosperma muscitoxicum +  and Zigadenus muscitoxicus +
Amianthium muscitoxicum +
Amianthium +
species +
persistent +
distinct +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
sepaloid +  and petaloid +
narrower +
caulescent +  and scapose +
3 +  and 2 +