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Calochortus lyallii

Lyall's mariposa-lily

Plummer's mariposa-lily

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

not branching or with branch in axil of cauline leaf, straight, 1–5 dm.

slender, usually branching, 3–6 dm.

Leaves

basal solitary, persistent, 1–3 dm × 2–20 mm, usually not exceeding inflorescence;

blade tapering toward both ends.

basal withering;

blade linear to lanceolate, 2–4 dm.

Inflorescences

subumbellate, 1–9-flowered;

bracts 2–several, lanceolate to linear, attenuate, unequal, 1–5 cm;

peduncle slender, becoming stiffly erect in fruit.

2–6-flowered;

bracts resembling distal cauline leaves.

Flowers

erect or spreading;

perianth open, campanulate;

sepals white or purplish-tinged, usually with purple crescent, lanceolate, usually equaling petals, often adaxially papillose, apex acuminate to attenuate;

petals white or purplish-tinged, usually with median, red-purple, adaxial crescent distal to gland, ovate to lanceolate, abruptly contracted at base into short, conspicuous claw, usually conspicuously fringed with long, slender hairs, adaxial surface ± papillose, bearing a few long hairs distal to claw, apex acute to acuminate;

glands transversely oblong, depressed, arched upward, bordered proximally by narrower, crenate membrane, with short, thick hairs toward distal margin of enclosed surface, both fringe of lower membrane and hairs densely long-papillose;

filaments basally dilated, ± equaling anthers;

anthers oblong-lanceolate, apex acute to short-apiculate.

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

erect, 3-winged, ellipsoid, base and apex acute.

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

Seeds

irregular.

light beige.

2n

= 20.

= 18.

Calochortus lyallii

Calochortus plummerae

Phenology Flowering late spring–mid summer. Flowering late spring–mid summer.
Habitat Dry slopes, open coniferous forests Dry rocky slopes, often in brush, chaparral, pine forest
Elevation 300–1500 m (1000–4900 ft) 0–1700 m (0–5600 ft)
Distribution
from FNA
WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 26, p. 130. 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. 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. 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 Baker: J. Linn. Soc., Bot. 14: 305. (1874) Greene: Pittonia 2: 70. (1890)
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