OregonFlora: Calochortus lyallii vs. Calochortus nuttallii

	Calochortus lyallii	Calochortus bruneaunis (synonym of Calochortus nuttallii)
		Bruneau mariposa lily
Stems		10–40 cm long.
Leaves		basal leaves very narrow, 10–20 cm long, withering at anthesis.
Inflorescences		1–4-flowered; erect; bracts several, 2–8 cm long.
Flowers		sepals 10–40 mm long; petals oblanceolate, 20–40 mm long, with median longitudinal green stripe on outer surface, yellow zone surrounding nectary with a dark red to dark purple blotch or crescent above; tips acuminate; nectary round, depressed, surrounded by scant hairs; hairs in a tight oblong grouping clustering to a center; filaments 5–6 mm long; anthers oblong, 5–9 mm long; reddish.
Fruits		upright; lance-linear, triangular in cross section, 3–7 cm long.
Seeds		flat, light tan.
2n		=14.

	Calochortus lyallii	Calochortus bruneaunis
Distribution	[WildflowerSearch map] [BONAP county map]	[WildflowerSearch map] [BONAP county map]
Discussion		Dry sagebrush zones. Flowering May–Jul. 700–2200m. BR, BW, Owy. CA, ID, NV; east to MT and UT. Native.
Source		Flora of Oregon, volume 1, page 292 Frank Callahan
Sibling taxa	C. amabilis, C. bruneaunis, C. coeruleus, C. coxii, C. elegans, C. eurycarpus, C. greenei, C. howellii, C. indecorus, C. leichtlinii, C. longebarbatus, C. luteus, C. macrocarpus, C. monophyllus, C. nitidus, C. nudus, C. persistens, C. subalpinus, C. tolmiei, C. umpquaensis, C. uniflorus	C. amabilis, C. bruneaunis, C. coeruleus, C. coxii, C. elegans, C. eurycarpus, C. greenei, C. howellii, C. indecorus, C. leichtlinii, C. longebarbatus, C. luteus, C. macrocarpus, C. monophyllus, C. nitidus, C. nudus, C. persistens, C. subalpinus, C. tolmiei, C. umpquaensis, C. uniflorus
Synonyms		Calochortus nuttallii, Calochortus nuttallii var. bruneaunis
Web links	Local floras: BC, WA Local Web sites: Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: OR Local Web sites: Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Calochortus lyallii

Calochortus bruneaunis

(synonym of Calochortus nuttallii)

Bruneau mariposa lily

Stems

10–40 cm long.

Leaves

basal leaves very narrow, 10–20 cm long, withering at anthesis.

Inflorescences

1–4-flowered; erect;

bracts several, 2–8 cm long.

Flowers

sepals 10–40 mm long;

petals oblanceolate, 20–40 mm long, with median longitudinal green stripe on outer surface, yellow zone surrounding nectary with a dark red to dark purple blotch or crescent above;

tips acuminate;

nectary round, depressed, surrounded by scant hairs;

hairs in a tight oblong grouping clustering to a center;

filaments 5–6 mm long;

anthers oblong, 5–9 mm long; reddish.

Fruits

upright; lance-linear, triangular in cross section, 3–7 cm long.

Seeds

flat, light tan.

=14.