Eastern Mojave Vegetation | Various flower parts of Coll. No. 2202, Bidens frondosa |
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Scanned 4 February 2020.
Coll. No. 2202, 27 August 2019, characters observed: Herbs, 18-28 cm.; Leaves, basal, unknown, cauline, opposite, 50 mm. × 40 mm. wide, pinnately compound, leaflets, #3, 25 mm. × 12 mm. wide, margin, serrate; Inflorescence, head enclosed in an involucre, 5-6 mm. wide; Phyllaries, outer, #5, 12 mm. × 2 mm. wide, green, inner, many, 5.5 mm. × 2.5 mm. wide, brown, margin, scarious (similar to the paleae); Receptacle, paleate; Paleae, 5 mm. × 1.7 mm. wide, margin, scarious; Corolla, 1.5 mm., orange-yellow; Pappus, #2, barbed awns, 1.5 mm.; Achene, 2-5-2.8 mm. × 1.5 mm. wide, very flat, hairy.
Article records that use this photograph:
Other photos about Species - Asteraceae or Bidens frondosa.
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Date and time this page was prepared: 11/3/2024 5:39:31 PM |