Flora of North America species comparison

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Calochortus macrocarpus

Calochortus tiburonensis
Calochortus macrocarpus

green-banded star-tulip, sagebrush mariposa-lily

Tiburon mariposa-lily
Habit Plants usually bulbose; bulb coat membranous.
Stems

usually not branching, stout, 2–5 dm.

usually branching, 1–6 dm.
Leaves

basal withering, 0.5–1 dm;

blade linear.

basal persistent, 1–7 dm;

blade lanceolate, flat.
Inflorescences

subumbellate, 1–3-flowered;

bracts 3–5 cm.

2–several-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 open, campanulate;

petals light yellow-green, flecked and streaked purplish brown, oblanceolate, ciliate to near apex, hairy;

glands depressed, bordered proximally by ciliate membrane, distally by 2 or more rows of short hairs;

anthers short-tipped.
Capsules

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

erect, angled, apex acute.
Seeds

flat, inflated.

dark brown, irregular.
2n

= 14.

= 20.

Calochortus macrocarpus

Calochortus tiburonensis
Phenology Flowering late spring–early summer.
Habitat Serpentine grasslands
Elevation 0–200 m [0–700 ft]
Distribution
from USDA
w North America
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

Of conservation concern.

Calochortus tiburonensis is known only from Ring Mountain, Marin County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
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. 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
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
Synonyms Mariposa macrocarpa
Name authority Douglas: Trans. Hort. Soc. London 7: 276, plate 8. (1828) A. J. Hill: Madroño 22: 100, fig. 1. (1973)
Source FNA vol. 26, p. 136. Treatment authors: P. L. Fiedler, R. K. Zebell. FNA vol. 26, p. 131. Treatment authors: P. L. Fiedler, R. K. Zebell.
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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