Compilation
Chrysopsis villosa

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Name

Identification
Isotype of Heterotheca mucronata Harms ex Turner [family ASTERACEAE ] (stored under name); Verified by Harms ex Turner, 1984 Heterotheca mucronata Harms ex Turner [family ASTERACEAE ] Verified by J. C. Semple (WAT), 1987 Chrysopsis villosa (Pursh) Nutt. [family ASTERACEAE ] Verified by Not on Sheet,
Related name
  • Chrysopsis foliosa
  • Chrysopsis villosa
  • Chrysopsis camporum
  • Chrysopsis viscida
  • Heterotheca viscida
  • Heterotheca fulcrata
  • Heterotheca rutteri
  • Chrysopsis caudata
  • Heterotheca villosa
  • Chrysopsis mollis
  • Heterotheca mucronata
  • Heterotheca camporum
  • Inula villosa
Common name
  • Cliff goldenaster, Flora of North America Vol. 20
  • Stiffleaf goldenaster, Flora of North America Vol. 20
  • Hairy goldenaster, Flora of North America Vol. 20
  • Hoary goldenaster, Flora of North America Vol. 20
  • Huachuca or Rutter’s goldenaster, Flora of North America Vol. 20

Flora

Entry for Heterotheca sessiliflora (Nuttall) Shinners subsp. fastigiata (Greene) Semple [family COMPOSITAE]
Herbarium
Flora of North America (FNA)
Collection
Flora of North America
Resource Type
Reference Sources
Entry From
Flora of North America, Vol 20,
Names
Heterotheca sessiliflora (Nuttall) Shinners subsp. fastigiata (Greene) Semple [family COMPOSITAE], Phytologia, 73: 451. 1993
Chrysopsis fastigiata Greene [family COMPOSITAE], Pittonia, 3: 296. 1898
Chrysopsis villosa (Pursh) Nuttall ex de Candolle var. fastigiata (Greene) H. M. Hall [family COMPOSITAE]
Heterotheca fastigiata (Greene) V. L. Harms [family COMPOSITAE]
Heterotheca sessiliflora var. sanjacintensis Semple [family COMPOSITAE]
Treatment Author(s)
John C. Semple
Information
Stems 1–20, ascending to erect, (24–)37–85(–108) cm, densely strigose, becoming moderately hispido-strigose and densely stipitate-glandular distally. Cauline leaves sessile, light green or silvery-whitish; proximal oblanceolate 12–38 × (3–)4.7–7(–8.5) mm, margins entire, undulate, faces moderately to densely hispido-strigose, very sparsely to moderately stipitate-glandular; distal lanceolate, 10–20 × 2–6 mm, reduced distally, stiff, bases rounded, margins usually strongly undulate, often more stipitate-glandular and less ciliate than faces, sparsely to extremely densely short-strigose, sparsely to densely glandular. Peduncle bracts 3–5, leaflike, greatly reduced, none enlarged and subtending heads. Involucres 7–10(–12) mm. Ray florets 4–14; laminae 3.5–5.9(–9) mm. Disc florets: corolla lobes sparsely pilose, hairs 0.25–0.6 mm. Cypsela faces sparsely strigose. 2n = 18.
Phenology
mar-may (spring), jul-aug (summer), sep-oct (fall), dec (winter)
Altitude range
(100–)300–1800(–2200) m;
Distribution
USA Calif.
Discussion
Subspecies fastigiata is known from the San Gabriel, San Bernardino, and San Jacinto mountains, and from Mount Palomar. It is distinguished by its undulate leaf margins, heads not subtended by large peduncle bracts, and usually low number of ray florets. Two varieties have been recognized on the basis of the density of leaf hairs and glands. In var. fastigiata, the leaves appear silvery white because of the densely short-strigoso-canescent indument of tightly appressed, short hairs obscuring underlying glands; it occurs in the San Gabriel, San Bernardino, and Santa Monica mountains. In var. sanjacintensis, the leaves are sparsely to moderately hispido-strigose and are more densely stipitate-glandular, giving them a light green appearance; it is known from the San Jacinto Mountains and Mount Palomar, and is of conservation concern. Hybridization with subsp. echioides occurs at lower elevations throughout the range.

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