Flora of North America species comparison

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Calochortus obispoensis

Calochortus westonii

San Luis mariposa-lily

mariposa-lily, Shirley Meadows mariposa lily, Shirley Meadows star-tulip
Habit Plants usually bulbose; bulb coat fibrous-reticulate.
Stems

slender, branching, straight, 3–6 dm.

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

basal withering, 2–3 dm;

blade linear-lanceolate.

basal persistent, 1–2 dm;

blade linear, flat.
Inflorescences

2–6-flowered.

1–12-flowered.
Flowers

erect;

perianth opening flat, campanulate;

sepals often reflexed, lanceolate, 1–3 cm, glabrous, apex long-tapered;

petals yellow to deep orange, purple-brown at tip, oblong-ovate, 1–2 cm, conspicuously bearded, margins fringed or dentate, apex fringed with hairy tufts;

glands round, slightly depressed, glabrous, surrounded and obscured by ring of slender, dense hairs united at base;

filaments 7–8 mm;

anthers oblong, apex acute.

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, linear, 3-angled, 3–4 cm, apex acute.

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

light yellow, translucent.

irregular.
2n

= 18.

Calochortus obispoensis

Calochortus westonii
Phenology Flowering late spring–mid summer. Flowering late spring.
Habitat Dry stony hills, canyons, edge of chaparral, serpentine Open places in woods, meadows
Elevation 100–500 m (300–1600 ft) 1500–2000 m (4900–6600 ft)
Distribution
from FNA
CA
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Calochortus obispoensis is restricted to San Luis Obispo County.

(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. 141. 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. 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. 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 Lemmon: Bot. Gaz. 11: 180. (1886) 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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