Eastern Mojave Vegetation Coll. No. 724, Symphyotrichum lanceolatum var. hesperium  


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  Asteraceae Symphyotrichum lanceolatum hesperium
Scanned 24 Oct 2011. The heads on left have been partially dissected to aid in identification.

Originally determined as Erigeron philadelphicus, but in Taylor's (2010) key, phyllaries in multiple series leds one away from Erigeron.

Characters observed while keying this collection: Perennial from fibrous roots and rhizomes, not thistle- like; generally > 4 dm tall (observed 3.5-4.5 dm); Stem pubesence uniform and sparse; Leaves basal withered at flowering, without spinulose tip; Peduncle not glandular; Involucre not glandular; Receptacle naked; Phyllaries in multiple series, could be >3; Outer phyllaries not chartaceous (paper-like) but could have scarious margins to half their length, elongate green area at tip, tip acuminate; Flowers not all ligulate; Ray flowers conspicuous, color violet or purple; Disk flowers style branches not tipped with tufted yellow hairs; Achenes with pappus of hairs.

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Other photos about Species - Asteraceae or Symphyotrichum lanceolatum hesperium.


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Date and time this page was prepared: 7/13/2024 8:18:28 AM