Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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  • Up-to-date information about California vascular plants is available from the Jepson eFlora.

ERODIUM

STORKSBILL, FILAREE

Mary Susan Taylor

Annual, perennial herb
Leaves simple to pinnately compound; lower basal; upper opposite; blade lanceolate to reniform in outline, base cordate to truncate, short-hairy
Inflorescence: umbel
Flower: stamens 5, alternate 5 scale-like staminodes
Fruit: body indehiscent, fusiform, 1-seeded, base sharply pointed, top generally pitted, pits subtended by 1–2 furrows or not; style segment persistent to fruit body stiffly hairy on side facing column
Species in genus: ± 75 species: temp Am, Eurasia, n Africa, Australia
Etymology: (Greek: heron, from bill-like fruit)
Reference: [Guittonneau 1972 Boissiera 20:1–154]
Some cultivated for forage, dyes.

Introduced

E. botrys (Cav.) Bertol.

Annual
Stem prostrate to ascending, 1–9 dm, short-hairy
Leaves lobed to dissected; lobes ± 8–10 mm wide; lower leaves 3–15 cm; blade ± = petiole, ovate to oblong in outline, glabrous to sparsely puberulent, veins short-appressed-hairy
Flower: sepals 10–13 mm, tip bristly; petals slightly > sepals, lavender
Fruit: body 8–11 mm, pit ± round, deep, glabrous, generally subtended by 2 furrows; style column 5–12 cm
Chromosomes: 2n=40
Ecology: Dry, open or disturbed sites
Elevation: < 1000 m.
Bioregional distribution: California Floristic Province
Distribution outside California: native to s Europe

Introduced

E. cicutarium (L.) Aiton

Annual
Stem decumbent to ascending, 1–5 dm, ± glandular-hairy
Leaves compound; lower 3–10 cm, blade > petiole, ovate to oblanceolate in outline, sparsely hairy; leaflets 9–13, deeply dissected, ultimate segments 1–2 mm wide
Flower: sepals 3–5 mm, tip bristly; petals ± = sepals, red-lavender, base generally purple
Fruit: body 4–7 mm, pit ± round, glabrous, subtended by 1 shallow furrow or not; style column 2–5 cm
Chromosomes: 2n=40
Ecology: Open, disturbed sites, grassland, scrub
Elevation: < 2000 m.
Bioregional distribution: California
Distribution outside California: widespread US; native to Eurasia
Flowering time: Feb–May

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