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Calochortus macrocarpus

green-banded star tulip, sagebrush mariposa lily

Calochortus subalpinus

Cascade mariposa lily, mountain cat's ear, subalpine mariposa lily

Stems

20–55 cm long.

5–20 cm long, flexuous.

Leaves

basal leaves linear, 5–10 cm long, glaucous;

margins revolute, withering.

basal leaves 10–30 cm × 2–15 mm.

Inflorescences

1–2-flowered.

1–5-flowered;

bracts 2 or more, lanceolatelinear, 1–5 cm long, acuminate.

Flowers

sepals lanceolate, 40–50 mm long;

petals obovate, 40–60 mm long, white to pink or purple, with a chevron or crescent or not; lower 33% of inner petal with yellow scattered hairs; outer petal surface with distinct green band;

nectary depressed, triangular;

filaments 8–9 mm long;

anthers to 10 mm long, pink to light purple.

sepals to 25 mm, with a dark blotch near base;

petals obovate to 30 mm, white to yellowish cream;

inner surface hairy throughout, white hairs above grading into yellow hairs near nectary;

nectary strongly lunate and almost tube-like, with a shallow membrane; front crested with a single row of branching hairs; back crested with sparse branching hairs;

filaments to 7 mm long;

anthers to 8 mm long, yellow.

Fruits

erect; lance-linear, 5–10 mm wide.

nodding, oblong-obtuse; to 3 cm long.

Seeds

wafer-like; straw-colored.

irregular-shaped, light yellow; aging to brown.

2n

=20.

Calochortus macrocarpus

Calochortus subalpinus

Distribution
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Discussion

Rocky grasslands and rocky summit balds. Flowering May– Aug. 800–2500m. Casc, CR, ECas. WA. Native.

Source Flora of Oregon, volume 1, page 295
Frank Callahan
Flora of Oregon, volume 1, page 296
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. 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. tolmiei, C. umpquaensis, C. uniflorus
Subordinate taxa
C. macrocarpus var. macrocarpus, C. macrocarpus var. maculosus
Synonyms Calochortus lobbii
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