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Calochortus macrocarpus

green-banded star-tulip, sagebrush mariposa-lily

Photo is of parent taxon

lewiston mariposa lily, Nez Perce mariposa lily, sagebrush mariposa

Habit Plants usually bulbose; bulb coat membranous.

usually not branching, stout, 2–5 dm.


basal withering, 0.5–1 dm;

blade linear.


subumbellate, 1–3-flowered;

bracts 3–5 cm.



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, lanceoloid-linear, angled, 4–5 cm, apex acuminate.

narrow in cross section.


flat, inflated.


white or nearly so, with conspicuous reddish purple crescent distal to gland.


= 14.

Calochortus macrocarpus

Calochortus macrocarpus var. maculosus

Phenology Flowering late spring–mid summer.
Habitat Dry plains, rocky slopes, sagebrush scrub, pine forests, usually in volcanic soil
Elevation 300–2700 m (1000–8900 ft)
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from FNA
[BONAP county map]

Varieties 2 (2 in the flora).

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

Of conservation concern.

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

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.
Parent taxa Liliaceae > Calochortus Liliaceae > Calochortus > Calochortus macrocarpus
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. macrocarpus var. macrocarpus
Subordinate taxa
C. macrocarpus var. macrocarpus, C. macrocarpus var. maculosus
Synonyms Mariposa macrocarpa C. maculosus
Name authority Douglas: Trans. Hort. Soc. London 7: 276, plate 8. (1828) (A. Nelson & J. F. Macbride) A. Nelson & J. F. Macbride: Contr. Gray Herb. 56: 14. (1918)
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