Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
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LIMNANTHACEAE

MEADOWFOAM FAMILY

Robert Ornduff

Annual, glabrous to hairy
Stem generally branched
Leaves alternate, deeply pinnately lobed to 1–2-compound; stipules 0
Inflorescence: flowers solitary in axils, peduncled
Flower generally bisexual, radial; sepals 3–5, free; petals 3–5, free, white to pink or yellow; stamens 3, 8, or 10, free, generally in 2 whorls; nectary glands at bases of outer stamens; pistils 2–5, ± free, 1-ovuled, styles fused except sometimes at tip
Fruit: nutlets 1–5, ovoid to spheric, generally tubercled
Genera in family: 2 genera, 10 species: temp North America
Chromosomes: 2n=10 for all species

LIMNANTHES

MEADOWFOAM

Annual, decumbent to erect
Leaf generally 1-odd-pinnately lobed or compound; lobes or leaflets entire to deeply lobed
Flower: sepals 4–5; petals 4–5, generally > sepals, tips toothed or jagged; stamens 8 or 10; pistils 4–5
Fruit: nutlets 1–5, smooth or tubercled
Species in genus: 9 species: ± coastal w North America
Etymology: (Greek: marsh flower, from habitat)
Reference: [Mason 1952 Univ Calif Publs Bot 25:455–512]
Sect. Inflexae merits critical review. Fls spring.

Native

L. floccosa Howell

WOOLLY MEADOWFOAM


Stem < 25 cm
Leaf < 8 cm; leaflets 4–10, < 1 cm, linear to ovate, entire, toothed, or lobed
Flower urn-, cup-, or bell-shaped; sepals 4–10 mm; petals 4.5–10 mm, < to ± > sepals, white; stamens 2.5–8.5 mm, anthers 0.4–1.5 mm; style 1.5–4 mm
Fruit: nutlets, 1–5, 3–4.5 mm, obovoid, tubercles < 1 mm or 0
Ecology: UNCOMMON. Moist meadows, vernal pools
Elevation: 10–400 m.
Bioregional distribution: Klamath Ranges, Inner North Coast Ranges (near Kelseyville, Lake Co.), Cascade Range, Sacramento Valley.In CA nutlets fall together, with calyx.

Native

subsp. floccosa


Flower bell- to urn-shaped; sepals 4–9 mm; petals 4.5–8.5 mm; anthers 0.4–± 1 mm, generally dehiscing inward; style 1.5–3 mm
Fruit: nutlets, 1–3, with awl-shaped tubercles, also generally with bristles down-pointed
Ecology: Moist meadows, vernal pools
Elevation: < 400 m.
Bioregional distribution: Klamath Ranges, Inner North Coast Ranges (near Kelseyville, Lake Co.), Cascade Range
Synonyms: subsp. bellingeriana (M. Peck) Arroyo, Bellinger's meadowfoam, reported from CaRF but requires further study
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for LIMNANTHES%20floccosa%20subsp.%20floccosa being generated
 


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