Flora of North America species comparison

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Calochortus macrocarpus

Calochortus ambiguus
Calochortus macrocarpus

green-banded star-tulip, sagebrush mariposa-lily

doubting mariposa lily
Habit Plants usually bulbose; bulb coat membranous. Plants often bulbose; bulb coat membranous.
Stems

usually not branching, stout, 2–5 dm.

usually branching, straight.
Leaves

basal withering, 0.5–1 dm;

blade linear.

basal withering;

blade linear-attenuate.
Inflorescences

subumbellate, 1–3-flowered;

bracts 3–5 cm.

subumbellate, 1–4-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;

perianth pinkish or bluish gray, infrequently with longitudinal gray stripe, open, campanulate;

sepals invested near gland, with yellowish, distally enlarged or branching, gland-tipped hairs, base sometimes marked with dull purple, apex acuminate;

petals with median blotch usually surrounded by yellow zone, ± equaling sepals, base sometimes marked with dull purple;

glands round to lunate, depressed, surrounded with narrow, deeply fringed membrane, densely covered with short, distally branching hairs;

filaments shorter than anthers;

anthers oblong-lanceolate, apex obtuse to acute.
Capsules

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

erect, linear-oblong, 3-angled, apex acute.
Seeds

flat, inflated.

flat.
2n

= 14.

= 18.

Calochortus macrocarpus

Calochortus ambiguus
Phenology Flowering late spring–summer.
Habitat Dry soils
Elevation 1100–2700 m [3600–8900 ft]
Distribution
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from FNA
AZ; NM; UT
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

(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. Treatment authors: P. L. Fiedler, R. K. Zebell. FNA vol. 26. Treatment authors: P. L. Fiedler, R. K. Zebell.
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. 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, C. westonii
Subordinate taxa
C. macrocarpus var. macrocarpus, C. macrocarpus var. maculosus
Synonyms Mariposa macrocarpa C. watsonii var. ambiguus
Name authority Douglas: Trans. Hort. Soc. London 7: 276, plate 8. (1828) (M. E. Jones) Ownbey: Ann. Missouri Bot. Gard. 27: 505. (1940)
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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