Flora of North America species comparison

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Calochortus umbellatus

Calochortus coeruleus

Oakland mariposa lily, Oakland star-tulip

beavertail-grass, blue cat's ear, blue star tulip
Stems

usually branching, 8–25 cm, not bearing bulblets.

not branching, 0.3–2 dm.
Leaves

basal persistent, 2–4 dm;

blade lanceolate, flat;

cauline usually present.

basal persistent, 1–2 dm;

blade linear, flat.
Inflorescences

subumbellate, 3–12-flowered.

1–10-flowered.
Flowers

± erect;

perianth open, campanulate;

sepals 10–14 mm;

petals white to pale pink, usually with purple blotch near gland, widely obovate to cuneate, 12–18 mm, adaxial surface not ciliate, ± glabrous, margins irregularly dentate distally;

glands basally convex, covered by broad, ciliate membrane, bordered distally by short hairs;

filaments longer than anthers;

anthers oblong, apex acute or obtuse.

erect to spreading;

perianth open, campanulate;

sepals oblong-lanceolate, ca. 10 mm, glabrous, apex acuminate;

petals light blue, obovate, 8–12 mm, adaxial surface hairy only distal to gland, margins ciliate to apex, apex acuminate;

glands slightly depressed, bordered proximally by ciliate membrane, distally by short hairs;

anthers oblong, apex acute to acuminate.
Capsules

nodding, 3-winged, 1–2 cm.

nodding, not winged, 1–2 cm, apex acute.
Seeds

dark brown, irregular.

irregular.
2n

= 20.

= 20.

Calochortus umbellatus

Calochortus coeruleus
Phenology Flowering early spring–early summer. Flowering late spring–mid summer.
Habitat Openings in chaparral or woods, often on serpentine Open gravelly places in woods
Elevation 100–700 m (300–2300 ft) 600–2500 m (2000–8200 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
Discussion

Calochortus umbellatus grows around San Francisco Bay. It is reported also from Lake County.

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

Calochortus coeruleus appears to intergrade with C. tolmiei to some extent, especially in petal ciliation (K. L. Chambers, pers. comm.), and it might better be treated as a variety of the latter, more widespread species.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 26, p. 127. FNA vol. 26, p. 124.
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. 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. 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. 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
Synonyms Cyclobothra coerulea, C. coeruleus var. fimbriatus, C. maweanus
Name authority Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 168. (1868) (Kellogg) S. Watson: Proc. Amer. Acad. Arts 14: 263. (1879)
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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