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Parry's Dwarf Sunflower

Helianthella parryi A. Gray

Description

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Plants 20–50 cm. Cauline leaves: largest proximal to mid stems; blades usually 5-nerved, oblanceolate or spatulate, faces rough-pubescent. Heads usually borne singly, sometimes 2–3+, ± nodding. Involucres hemispheric or broader, 15–20 mm diam. Phyllaries lanceolate to lance-linear (subequal, margins ciliate). Paleae scarious, relatively soft. Ray florets 8–14; (corollas pale yellow) laminae 25–30 mm. Disc corollas yellow. Cypselae strongly compressed, narrowly obovate (margins ciliate, faces strigose); pappi of 2 ± subulate scales plus 0–4+ shorter scales.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 115 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Helianthella parryi

provided by wikipedia EN

Helianthella parryi, common name Parry's dwarf-sunflower,[1] is a North American plant species in the family Asteraceae. It grows in the southwestern United States, in the States of Arizona, New Mexico, Colorado, and Utah.[2][3]

Helianthella parryi is a herbaceous plant up to 50 cm (20 in) tall. The plant usually produces only one yellow flower heads per stem, though sometimes 2 or 3. Heads are nodding (hanging). Each head contains 8-14 yellow ray flowers surrounding numerous yellow disc flowers.[4]

References

  1. ^ USDA, NRCS (n.d.). "Helianthella parryi". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 July 2015.
  2. ^ Biota of North America Program 2014 county distribution map
  3. ^ SEINet, Southwestern Biodiversity, Arizona chapter includes photos, description, distribution map
  4. ^ Flora of North America, Helianthella parryi A. Gray, 1864.

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Helianthella parryi: Brief Summary

provided by wikipedia EN

Helianthella parryi, common name Parry's dwarf-sunflower, is a North American plant species in the family Asteraceae. It grows in the southwestern United States, in the States of Arizona, New Mexico, Colorado, and Utah.

Helianthella parryi is a herbaceous plant up to 50 cm (20 in) tall. The plant usually produces only one yellow flower heads per stem, though sometimes 2 or 3. Heads are nodding (hanging). Each head contains 8-14 yellow ray flowers surrounding numerous yellow disc flowers.

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Wikipedia authors and editors
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wikipedia EN