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Calochortus lyallii

Lyall's mariposa-lily

Cox's cat's ear, Cox's mariposa-lily

Stems

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

usually not branching, straight to flexuous, often scapelike, 15–25 cm.

Leaves

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

blade tapering toward both ends.

basal ± erect, to 3 dm × 3–7 mm;

blade with adaxial surface densely hairy, abaxial surface glabrous, shiny.

Inflorescences

subumbellate, 1–9-flowered;

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

peduncle slender, becoming stiffly erect in fruit.

erect, 1–7-flowered;

bracts 1–several, 2.5–3 cm.

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, campanulate;

sepals ovate-acuminate, 20 × 8 mm;

petals white, with reddish striations from base to gland and broad lavender chevron just distal to gland margins, broadly obovate, 2.5 cm, adaxial surface densely hairy, margins slightly ciliate;

glands transversely oblong-lunate, deeply depressed, green at adaxial base, 1/2 to nearly equaling petal claw width, surrounded by yellow hairs that grade to white at petal apex, covered with membranous scales, scales covered with very small, translucent, rodlike hairs;

filaments 7 mm;

anthers reddish brown, 3–7 mm, apex apiculate.

Capsules

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

nodding, 3-winged, ellipsoid-elongate, 3–4 cm.

Seeds

irregular.

light beige, surface rough.

2n

= 20.

Calochortus lyallii

Calochortus coxii

Phenology Flowering late spring–mid summer. Flowering mid summer.
Habitat Dry slopes, open coniferous forests North-facing open grassy slopes or woods, on serpentine
Elevation 300–1500 m (1000–4900 ft) 200–1000 m (700–3300 ft)
Distribution
from FNA
WA; BC
[WildflowerSearch map]
[BONAP county map]
from FNA
OR
[WildflowerSearch map]
[BONAP county map]
Discussion

Of conservation concern.

Calochortus coxii is endemic to Douglas County from near the Umpqua River to Myrtle Creek Mountain.

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

Source FNA vol. 26, p. 130. FNA vol. 26, p. 126.
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. 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
Name authority Baker: J. Linn. Soc., Bot. 14: 305. (1874) M. R. Godfrey & Callahan: Phytologia 65: 216, fig.1g–k. (1988)
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