Flora of North America species comparison

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Calochortus macrocarpus

Calochortus westonii
Calochortus macrocarpus

green-banded star-tulip, sagebrush mariposa-lily

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

usually not branching, stout, 2–5 dm.

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

basal withering, 0.5–1 dm;

blade linear.

basal persistent, 1–2 dm;

blade linear, flat.
Inflorescences

subumbellate, 1–3-flowered;

bracts 3–5 cm.

1–12-flowered.
Flowers

erect;

perianth open, campanulate;

sepals lanceolate, 4–5 cm, apex acuminate;

petals purple, with median green stripe on abaxial surface, obovate, 4–6 cm, bearded distal to gland, apex acuminate;

glands triangular-sagittate, slightly depressed, densely covered with slender hairs;

filaments 8–9 mm;

anthers lanceolate-linear, ca. 1 cm, 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, lanceoloid-linear, angled, 4–5 cm, apex acuminate.

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

flat, inflated.

irregular.
2n

= 14.

Calochortus macrocarpus

Calochortus westonii
Phenology Flowering late spring.
Habitat Open places in woods, meadows
Elevation 1500–2000 m (4900–6600 ft)
Distribution
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(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.)
Key
1. Petals purple, with or without dark purple band distal to gland.
var. macrocarpus
1. Petals white, with reddish purple crescent distal to gland.
var. maculosus
Source FNA vol. 26, p. 136. 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. 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
Subordinate taxa
C. macrocarpus var. macrocarpus, C. macrocarpus var. maculosus
Synonyms Mariposa macrocarpa C. coeruleus var. westonii
Name authority Douglas: Trans. Hort. Soc. London 7: 276, plate 8. (1828) 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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