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

Dunn's mariposa-lily

Habit Plants rarely bulbose; bulb coat, when present, membranous.
Stems

not branching, straight, 1–5 dm.

slender, usually branching, ± straight, 2–6 dm.

Leaves

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

blade flat, tapering toward both ends, becoming involute.

basal withering, 1–2 dm;

blade linear-attenuate, channeled.

Inflorescences

subumbellate, 1–5-flowered;

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

2–6-flowered;

bracts 1–2 cm.

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 open, campanulate;

sepals lanceolate-ovate, 1–2 cm;

petals white, usually flushed pink, with red-brown blotch distal to gland, obovate to cuneate, 2–3 cm, usually rounded distally, with yellowish hairs near gland;

glands rounded, not depressed, covered with linear yellow hairs;

filaments 5–6 mm;

anthers white, oblong, 4–5 mm, apex acute.

Capsules

erect, 3-winged, ellipsoid-oblong.

erect, linear, angled in cross section, 2–3 cm.

Seeds

light beige.

2n

= 20.

= 14.

Calochortus eurycarpus

Calochortus dunnii

Phenology Flowering summer. Flowering mid summer.
Habitat Grasslands and open coniferous forests Dry stony ridges in chaparral and pine forest
Elevation 700–2700 m (2300–8900 ft) 1500–1700 m (4900–5600 ft)
Distribution
from FNA
ID; MT; NV; OR; WA; WY
[WildflowerSearch map]
[BONAP county map]
from FNA
CA; Mexico (Baja California)
[BONAP county map]
Discussion

Of conservation concern.

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

Source FNA vol. 26. FNA vol. 26.
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. 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 C. nitidus var. eurycarpus C. palmeri var. dunnii
Name authority S. Watson: Botany (Fortieth Parallel), 348. (1871) Purdy: Proc. Calif. Acad. Sci., ser. 3, 2: 147, plate 19, figs. 14, 17. (1901)
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