Eastern Mojave Vegetation Head of Coll. No. 1260, Helianthus pauciflorus ssp. subrhomboideus  


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  Asteraceae Helianthus pauciflorus subrhomboideus
Scanned 26 December 2015.

Coll. No. 1260, 26 Jul 2015, characters observed: Perennial from rhizomes (not a tap-rooted annual), to 1 mm.; Leaves, cauline, opposite, 135 mm. × 32 mm. wide, rhomboid, margin, straight, short-toothed, green, not glaucus, adaxial scabrous-hispid, abaxial scabrous; Inflorescence, solitary heads on long peduncles; Peduncle, 25 cm.; Phyllaries in 3+ imbricate series, all similar, 8-9 mm. × 4 mm. wide, ovo-lanceolate, margin, ciliate, tips, erect; Receptacle, hemispheric, paleate; Paleae, 8 mm., ciliate distally; Rays, sterile, pappus, 2 scales 2.5 mm., corolla, 24 mm. × 6 mm. wide, yellow; Disk flowers, fertile, pappus, crown of scales with 2 elongated to 4 mm., corolla, 5 mm., yellow to dark red distally; Crysela, 3.3 mm., compressed quadrangular.

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Other photos about Species - Asteraceae or Helianthus pauciflorus subrhomboideus.


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Date and time this page was prepared: 7/13/2024 8:18:24 AM