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Fritillaria glauca

Siskiyou fritillary

spotted fritillary

Stems

5–20 cm.

10–60 cm.

Leaves

1–4(6), alternate, 3–11 cm long;

blades lance-ovate, sickleshaped, strongly glaucous.

in whorls of 2–3 leaves per node, 4–13 cm long;

blades linear to lanceolate.

Flowers

cupshaped;

perianth segments oblanceolate to oblong, 1.5–2(2.5) cm long, yellow with purple mottling to purple with yellow mottling;

apex not recurved;

nectaries broad-lanceolate, 25-33% perianth segment length;

style branched for 50% its length.

widely spreading;

perianth oblong to more or less squareshaped, 1–2(2.5)cm long;

segments brownish purple with yellow or rarely white mottling;

apex not recurved;

nectaries obscure, covering most of perianth segments;

style branched for more than 50% its length.

Fruits

capsules winged.

capsules angled.

2n

=24.

Fritillaria glauca

Fritillaria atropurpurea

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

Serpentine and non-serpentine gravelly slopes. Flowering Mar–Jun. 400–2100m. Casc, Sisk. CA. Native.

Fritillaria glauca is our only species that grows in serpentine soils. This species also grows in non-serpentine habitats. This begs the question: Was F. glauca historically a serpentine or non-serpentine endemic? The sickle-shaped and strongly glaucous leaves of F. glauca are distinct among Oregon fritillaries.

Dry or grassy slopes, often under trees or bushes. Flowering May–Jul. 100–2500m. BR, BW, Casc, ECas, Owy, Sisk. CA, ID, NV; east to ND and NB, southeast to NM. Native.

Source Flora of Oregon, volume 1, page 302
Stephen Meyers
Flora of Oregon, volume 1, page 301
Stephen Meyers
Sibling taxa
F. affinis, F. atropurpurea, F. camschatcensis, F. eastwoodiae, F. gentneri, F. pudica, F. purdyi, F. recurva
F. affinis, F. camschatcensis, F. eastwoodiae, F. gentneri, F. glauca, F. pudica, F. purdyi, F. recurva
Synonyms Fritillaria adamantina
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