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Davidson's fritillary, pine fritillary, pine woods fritillary

Greenhorn fritillary

Bulb scales

large 2–5; small 45–50.

large 8–12; small 60–200 or more.

Stem

1–4 dm, ± glaucous.

4–10 dm.

Leaves

4–20, in whorls of 2–3 leaves per node proximally, alternate distally, 5–15 cm, often equaling or larger than inflorescence;

blade linear, glaucous;

distal leaves usually ca. 1/3–1/2 length of proximalmost leaf.

in 1–2 whorls of 4–8 leaves per node proximally, alternate distally, 4–11 cm;

blade lanceolate.

Flowers

± erect, occasionally nodding;

tepals purplish, clearly mottled greenish yellow, 1.4–1.9 cm, apex not recurved;

nectaries obscure, yellow, dotted brown, widely ovate, 2/3 tepal length;

style obviously branched to near base, branches longer than 1.5 mm.

nodding;

tepals pinkish to purplish, oblong-lanceolate, 1.2–2 cm;

nectaries green with reddish margins, lanceolate, 1/3 tepal length;

style unbranched.

Capsules

angled.

winged.

2n

= 26.

= 24.

Fritillaria pinetorum

Fritillaria brandegeei

Phenology Flowering May–Jun. Flowering Apr.
Habitat Shaded or partially shaded granitic slopes Granitic soils, open forests
Elevation 1800–3200 m (5900–10500 ft) 1500–2100 m (4900–6900 ft)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
from FNA
CA
[BONAP county map]
Discussion

Fritillaria pinetorum is easily confused with F. atropurpurea.

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

Of conservation concern.

This species is rare and under pressure from cattle grazing.

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

Source FNA vol. 26, p. 170. FNA vol. 26, p. 168.
Parent taxa Liliaceae > Fritillaria Liliaceae > Fritillaria
Sibling taxa
F. affinis, F. agrestis, F. atropurpurea, F. biflora, F. brandegeei, F. camschatcensis, F. eastwoodiae, F. falcata, F. gentneri, F. glauca, F. liliacea, F. micrantha, F. ojaiensis, F. pluriflora, F. pudica, F. purdyi, F. recurva, F. striata, F. viridea
F. affinis, F. agrestis, F. atropurpurea, F. biflora, F. camschatcensis, F. eastwoodiae, F. falcata, F. gentneri, F. glauca, F. liliacea, F. micrantha, F. ojaiensis, F. pinetorum, F. pluriflora, F. pudica, F. purdyi, F. recurva, F. striata, F. viridea
Synonyms F. atropurpurea var. pinetorum
Name authority Davidson: Muhlenbergia 4: 67. (1908) Eastwood: Bull. Torrey Bot. Club 30: 484. (1903)
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