Narthecium americanum

Ker Gawler

Bot. Mag. 37: plate 1505. 1812.

Common names: Yellow asphodel
EndemicConservation concern
Synonyms: Abama americana (Ker Gawler) Morong Abama montana Small Narthecium ossifragum var. americanum (Ker Gawler) A. Gray
Treatment appears in FNA Volume 26. Mentioned on page 67.

Stems 2.5–4.5 dm. Leaf-blade 1–2 dm × 0.7–2.5 mm. Racemes compact, 3–6 cm. Tepals 4–7 × 0.5–1.5 mm; stamens 2–3.5 mm; anthers yellow; pedicel 4–5 mm. Capsules 10–14 mm including beaks. Seeds 1–1.5 mm, 7–8 mm including bristle-tails.


Phenology: Flowering mid–late summer.
Habitat: Boggy pine-barrens, pocosins, and wet savannas
Elevation: 0–50 m

Distribution

V26 44-distribution-map.jpg

Del., Md., N.J., N.C., S.C.

Discussion

Of conservation concern.

Narthecium americanum is listed as rare or endangered in North Carolina (J. L. Amoroso 1997), South Carolina (D. A. Rayner et al. 1979), and New Jersey (D. B. Snyder and V. E. Vivian 1981), and it has been extirpated from Delaware (A. O. Tucker et al. 1979).

Selected References

None.

Lower Taxa

None.

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

... more about "Narthecium americanum"
versatile +  and dorsifixed +
cordate +  and linear +
Frederick H. Utech +
Ker Gawler +
whorled +, opposite +  and alternate +
dilated +
long-pointed +
reticulate-veined +  and parallel-veined +
sheathing +  and involucrate +
1;several +
tunicate +  and scaly +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Yellow asphodel +
Del. +, Md. +, N.J. +, N.C. +  and S.C. +
0–50 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
greenish yellow +  and yellow +
unisexual +  and bisexual +
walled +  and capsular +
loculicidal +
oblong-lanceolate +  and 3-lobed +
membranaceous +  and leathery +
Boggy pine-barrens, pocosins, and wet savannas +
0.7mm;2.5mm +
overlapping +  and equitant +
persistent +
many;several +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
zygomorphic +  and actinomorphic +
Flowering mid–late summer. +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
wind-distributed +
pale-yellow +
1 +  and many +
bristle-tailed +  and filiform-ellipsoid +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Endemic +  and Conservation concern +
adnate +  and free +
staminodial +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
1 +  and several +
long-pointed +
3 +  and 1 +
Abama americana +, Abama montana +  and Narthecium ossifragum var. americanum +
Narthecium americanum +
Narthecium +
species +
glandless +  and 3-veined +
persistent +
distinct +
erect +  and spreading +
0.5mm;1.5mm +
sepaloid +  and petaloid +
narrower +
caulescent +  and scapose +
3 +  and 2 +