Calochortus aureus

S. Watson

Amer. Naturalist 7: 303. 1873.

Endemic
Synonyms: Calochortus nuttallii var. aureus (S. Watson) Ownbey
Treatment appears in FNA Volume 26. Mentioned on page 137.

Plants usually bulbose; bulb coat, when present, membranous. Stems usually not branching or twisted, 1–3 dm. Leaves: basal withering, 1–2 dm; blade linear. Inflorescences erect, subumbellate, 1–4-flowered; bracts unequal at base of inflorescence, 1–6 cm. Flowers erect; perianth open, campanulate; sepals with maroon blotch distal to gland, broadly lanceolate, 1–4 cm, apex acuminate; petals lemon yellow, with maroon blotch distal to gland, broadly obovate, cuneate, 3–3.5 cm, ± glabrous or with a few lemon-yellow hairs near gland; glands round, depressed, surrounded by conspicuously fringed membranes, densely covered with short, unbranched or distally branching hairs; filaments ca. equaling anthers; anthers yellowish cream, oblong, apex obtuse. Capsules erect, light tan to light-brown, linear-lanceoloid, 3-angled, ca. 2.5–5 cm, apex acuminate. Seeds light yellow, flat. 2n = 32.


Phenology: Flowering late spring–mid summer.
Habitat: Dry sandy–clayey places
Elevation: 1200–2000 m

Discussion

Selected References

None.

Lower Taxa

None.

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

... more about "Calochortus aureus"
yellowish cream +
pseudobasifixed +  and basifixed +
acuminate +  and obtuse +
P. L. Fiedler +  and R. K. Zebell +
S. Watson +
whorled +, opposite +  and alternate +
petiole-like +
dilated +
reticulate-veined +  and parallel-veined +
sheathing +  and involucrate +
1;several +
unequal +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
tunicate +  and scaly +
light tan;light-brown +
3-angled +  and linear-lanceoloid +
2.5 cm25 mm <br />0.025 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Ariz. +, N.Mex. +  and Utah. +
1200–2000 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
unisexual +  and bisexual +
winged +  and capsular +
globular +, oblong +, linear +  and 3-angled +
membranaceous +  and leathery +
depressed +  and round +
Dry sandy–clayey places +
branching +  and unbranched +
lemon-yellow +
1-4-flowered +  and subumbellate +
paired +, paniculate +  and racemose +
persistent +
proximalmost +
reduced +
many;several +
campanulate +
lemon yellow +
distinct +
with a few lemon-yellow hairs +  and glabrous +
cuneate;obovate +
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Flowering late spring–mid summer. +
Amer. Naturalist +
wind-distributed +
light yellow +
distinct +
lanceolate +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
adnate +  and free +
staminodial +
3 +, 4 +  and 6 +
twisted +  and branching +
glaucous +  and glabrous +
3 +  and 1 +
Calochortus nuttallii var. aureus +
Calochortus aureus +
Calochortus +
species +
connate +  and distinct +
sepaloid +  and petaloid +
narrower +
3 +  and 2 +