Flora of North America species comparison

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Calochortus excavatus

Calochortus westonii

Inyo County star-tulip

mariposa-lily, Shirley Meadows mariposa lily, Shirley Meadows star-tulip
Stems

slender, not branching, 1–3 dm.

slender and delicate, not branching, 3–15 cm.
Leaves

basal usually persistent, 1–2 dm;

blade linear.

basal persistent, 1–2 dm;

blade linear, flat.
Inflorescences

subumbellate, 1–4-flowered;

bracts paired, 3–8 cm.

1–12-flowered.
Flowers

erect;

perianth open, campanulate;

sepals lanceolate, 2–3 cm, apex acuminate;

petals lavender, with longitudinal median abaxial green stripe, with or without blotches, broadly cuneate to obovate, 3–4 cm, with a few short hairs near gland;

glands round, depressed, surrounded by conspicuously fringed membrane, densely covered with short, distally branching hairs;

filaments 6–8 mm;

anthers red-brown, oblong, 7–10 mm, apex obtuse.

erect to spreading;

perianth open, campanulate;

sepals ca. 10 mm;

petals white to light blue, lanceolate, 8–12 mm, ciliate only on margins, adaxial surface hairy only distal to gland, apex acute;

glands slightly depressed, bordered proximally by ciliate membrane, distally by short hairs;

anther apex acute to acuminate.
Capsules

erect, brown, lanceoloid-linear, 3-angled, 2–3 cm.

nodding, angled, 1–2 cm, apex acute.
Seeds

light beige, translucent, flat.

irregular.

Calochortus excavatus

Calochortus westonii
Phenology Flowering spring. Flowering late spring.
Habitat Grassy meadows in shadscale scrub Open places in woods, meadows
Elevation 1200–2000 m (3900–6600 ft) 1500–2000 m (4900–6600 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Calochortus excavatus is found only in the eastern Sierra Nevada in Mono and Inyo counties. It is threatened by groundwater depletion.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Of conservation concern.

Calochortus westonii is known from the Greenhorn Mountains, Kern and Tulare counties.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 137. FNA vol. 26, p. 125.
Parent taxa Liliaceae > Calochortus Liliaceae > Calochortus
Sibling taxa
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, C. aureus, C. bruneaunis, C. catalinae, C. clavatus, C. coeruleus, C. concolor, C. coxii, C. dunnii, C. elegans, C. eurycarpus, C. flexuosus, C. greenei, C. gunnisonii, C. howellii, C. indecorus, C. invenustus, C. kennedyi, C. leichtlinii, C. longebarbatus, C. luteus, C. lyallii, C. macrocarpus, C. minimus, C. monanthus, C. monophyllus, C. nitidus, C. nudus, C. nuttallii, C. obispoensis, C. palmeri, C. panamintensis, C. persistens, C. plummerae, C. pulchellus, C. raichei, C. simulans, C. splendens, C. striatus, C. subalpinus, C. superbus, C. tiburonensis, C. tolmiei, C. umbellatus, C. umpquaensis, C. uniflorus, C. venustus, C. vestae, C. weedii, C. westonii
C. albus, C. amabilis, C. ambiguus, C. amoenus, C. apiculatus, C. argillosus, C. aureus, C. bruneaunis, C. catalinae, C. clavatus, C. coeruleus, C. concolor, C. coxii, C. dunnii, C. elegans, C. eurycarpus, C. excavatus, C. flexuosus, C. greenei, C. gunnisonii, C. howellii, C. indecorus, C. invenustus, C. kennedyi, C. leichtlinii, C. longebarbatus, C. luteus, C. lyallii, C. macrocarpus, C. minimus, C. monanthus, C. monophyllus, C. nitidus, C. nudus, C. nuttallii, C. obispoensis, C. palmeri, C. panamintensis, C. persistens, C. plummerae, C. pulchellus, C. raichei, C. simulans, C. splendens, C. striatus, C. subalpinus, C. superbus, C. tiburonensis, C. tolmiei, C. umbellatus, C. umpquaensis, C. uniflorus, C. venustus, C. vestae, C. weedii
Synonyms C. coeruleus var. westonii
Name authority Greene: Pittonia 2: 71. (1890) Eastwood: Proc. Calif. Acad. Sci., ser. 4, 20: 136. (1931)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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