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FNA | Family List | FNA Vol. 7 | Limnanthaceae | Limnanthes

7. Limnanthes floccosa Howell, Fl. N.W. Amer. 108. 1897.

Woolly meadowfoam Woolly meadowfoam

Plants 3-25 cm; herbage glabrous or sparsely to densely hairy. Stems erect to ascending or decumbent. Leaves 1-8 cm; leaflets 5-11, blade linear to ovate-elliptic, margins entire, irregularly toothed, or lobed. Flowers urn-, cup-, or bell-shaped; sepals accrescent or not, ovate, obovate, lanceolate, oblong-lanceolate, or lanceolate-ovate, 4-10 mm; petals white, obovate, oblong, or obovate-cuneate, 4.5-10 mm, 1.6-1.8 times as long as wide, 0.5-1.1 times longer than sepals, apex retuse, obtuse, erose, truncate, or emarginate; filaments 2-7 mm; anthers (yellow) 0.4-1.5 mm; style 1.5-4 mm. Nutlets dark brown or gray, 3-4.5 mm, tuberculate, tubercles straw-colored, platelike, conic, or awl-shaped.

Subspecies 5 (5 in the flora): w United States.

SELECTED REFERENCE Arroyo, M. T. K. 1973. A taxometric study of infraspecific variation in autogamous Limnanthes floccosa (Limnanthaceae). Brittonia 25: 177-191.


1 Flowers bell- or urn-shaped (petals without marginal hairs basally); anthers usually dehiscing introrsely   (2)
+ Flowers cup-shaped (petals with marginal hairs basally); anthers usually dehiscing extrorsely (introrsely in subsp. pumila)   (3)
       
2 (1) Sepals abaxially and adaxially densely villous; nutlet tubercles awl-shaped.   7a Limnanthes floccosa subsp. floccosa
+ Sepals abaxially and adaxially glabrous or sparsely hairy; nutlet tubercles platelike.   7b Limnanthes floccosa subsp. bellingeriana
       
3 (1) Herbage densely hairy; sepals abaxially densely hairy.   7e Limnanthes floccosa subsp. californica
+ Herbage glabrous or sparsely hairy; sepals abaxially glabrous or sparsely hairy   (4)
       
4 (3) Sepals not accrescent, 7.5-8 mm, adaxially glabrous.   7c Limnanthes floccosa subsp. pumila
+ Sepals accrescent, 8.5-9 mm, adaxially densely hairy.   7d Limnanthes floccosa subsp. grandiflora

Lower Taxa


 

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