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big-pod mariposa, big-pod mariposa lily, white mariposa lily, wide-fruit mariposa lily

San Luis mariposa-lily

Habit Plants usually bulbose; bulb coat fibrous-reticulate.
Stems

not branching, straight, 1–5 dm.

slender, branching, straight, 3–6 dm.

Leaves

basal persistent, subtended by inflorescence, 1–3 dm × 5–25 mm;

blade flat, tapering toward both ends, becoming involute.

basal withering, 2–3 dm;

blade linear-lanceolate.

Inflorescences

subumbellate, 1–5-flowered;

bracts 2 or more, narrowly lanceolate to linear, long-attenuate, unequal, 1–5 cm.

2–6-flowered.

Flowers

erect;

perianth open, campanulate;

sepals ovate to lanceolate, usually much shorter than petals, glabrous, apex acute to acuminate;

petals creamy white to lavender, with conspicuous median red-purple adaxial blotch, obovate, invested near gland with few long, flexuous hairs, base cuneate, apex rounded or acute;

glands triangular-lunate, slightly depressed, bordered proximally by comparatively narrow, deeply fringed membrane, distally often by narrower, crenate membranes, enclosed surface densely covered with long yellowish hairs, which, with membrane fringe, are often inconspicuously papillose;

filaments slightly longer than anthers;

anthers oblong, apex obtuse.

erect;

perianth opening flat, campanulate;

sepals often reflexed, lanceolate, 1–3 cm, glabrous, apex long-tapered;

petals yellow to deep orange, purple-brown at tip, oblong-ovate, 1–2 cm, conspicuously bearded, margins fringed or dentate, apex fringed with hairy tufts;

glands round, slightly depressed, glabrous, surrounded and obscured by ring of slender, dense hairs united at base;

filaments 7–8 mm;

anthers oblong, apex acute.

Capsules

erect, 3-winged, ellipsoid-oblong.

erect, linear, 3-angled, 3–4 cm, apex acute.

Seeds

light beige.

light yellow, translucent.

2n

= 20.

= 18.

Calochortus eurycarpus

Calochortus obispoensis

Phenology Flowering summer. Flowering late spring–mid summer.
Habitat Grasslands and open coniferous forests Dry stony hills, canyons, edge of chaparral, serpentine
Elevation 700–2700 m (2300–8900 ft) 100–500 m (300–1600 ft)
Distribution
from FNA
ID; MT; NV; OR; WA; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Calochortus obispoensis is restricted to San Luis Obispo County.

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

Source FNA vol. 26. FNA vol. 26, p. 141.
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. 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
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. 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 C. nitidus var. eurycarpus
Name authority S. Watson: Botany (Fortieth Parallel), 348. (1871) Lemmon: Bot. Gaz. 11: 180. (1886)
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