Erodium cicutarium, storksbill or alfileria

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Intermountain Flora
Winter annual; vesture glandular-villous throughout; stems decumbent-ascending at first, becoming prostrate, few to several from a slender taproot, 0.5-3.5 (5) dm long, leafy, often reddish, the nodes swollen; leaves in a basal rosette and cauline leaves opposite, 3-14 cm long (measurement including the petiole), pinnnate with 4-8 opposite pairs of pinnatifid lateral leaflets, these 6-13 mm long, the stipules lanceolate, acute; inflorescence a 2-5 (10)-flowered umbel, glandular-pubescent, the pedicels 5-18 (22) mm long, spreading or reflexed from the base and recurved at the tip; sepals 2.8-4.3 mm long at the anthesis, to 6.4 mm in fruit, lanceolate to ovate, the mucro or awn 0.1-0.4 mm long; petals 3-6 (7) mm long, ciliate at the base, rose lavender; filaments broad at the base, the anthers about 0.8 mm long; mature stylar column (measured from receptacle to tip of stylodia) 2.5-4.5 cm long, the carpel bodies 4-5.5 mm long, narrowly ellipsoid, tapering to a sharp point at the base, bearing stiff, ascending hairs, the stylodia 0.6-0.7 mm long; 2n = 20, 36, 38, 40, 42.

Cronquist, A., Holmgren, N.H., and Holmgren, P.K. (1997) "Intermountain Flora" pg. 336, vol. 3 part A, The New York Botanical Garden New York.