Flora of North America species comparison

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Calochortus umbellatus

Calochortus plummerae

Oakland mariposa lily, Oakland star-tulip

Plummer's mariposa-lily
Habit Plants usually bulbose; bulb coat fibrous-reticulate.
Stems

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

slender, usually branching, 3–6 dm.
Leaves

basal persistent, 2–4 dm;

blade lanceolate, flat;

cauline usually present.

basal withering;

blade linear to lanceolate, 2–4 dm.
Inflorescences

subumbellate, 3–12-flowered.

2–6-flowered;

bracts resembling distal cauline leaves.
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;

perianth open, broadly campanulate;

sepals lanceolate, 3–5 cm, glabrous or with a few hairs at base, apex long-tapering;

petals pale pink to rose, drying purplish, broadly cuneate to obovate, 3–4 cm, glabrous distally or nearly so, rarely fringed, with conspicuous, long, yellow hairs in broad median band, margins dentate;

glands round, slightly depressed, ± glabrous, bordered by ring of dense, obscuring, orange hairs;

filaments 9–11 mm, ± equaling anthers;

anthers lanceolate-linear, apex acute to somewhat short-tipped.
Capsules

nodding, 3-winged, 1–2 cm.

erect, linear, angled, 4–8 cm, apex acute.
Seeds

dark brown, irregular.

light beige.
2n

= 20.

= 18.

Calochortus umbellatus

Calochortus plummerae
Phenology Flowering early spring–early summer. Flowering late spring–mid summer.
Habitat Openings in chaparral or woods, often on serpentine Dry rocky slopes, often in brush, chaparral, pine forest
Elevation 100–700 m (300–2300 ft) 0–1700 m (0–5600 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county 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.)
Source FNA vol. 26, p. 127. FNA vol. 26, p. 140.
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. 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. 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
Name authority Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 168. (1868) Greene: Pittonia 2: 70. (1890)
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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