Hymenothrix loomisii Blake
Family: Asteraceae
Hymenothrix loomisii image
Max Licher  
Annuals or biennials, 30-70 cm. Phyllaries 8(-12), mostly linear to narrowly oblanceolate. Rays 0. Disc florets 10-20; corollas creamy to bright yellow, mostly 4-4.5 mm, lobe lengths 0.3-1 times throats; anthers yellowish. Cypselae 2.5-4+ mm; pappus scales 3-5 mm. 2n = 24. Flowering summer-fall. Open, often disturbed, places; 900-2100 m; Ariz., Calif., Nev. Occurrences of Hymenothrix loomisii in California have been geographically scattered, sporadic, and nonpersistent introductions.

FNA 2006, Kearney and Peebles 1969, McDougall 1973
Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Herbaceous annuals, perennials, or biennials, to 70 cm tall, erect to ascending, herbage green, glandular above, slightly pubescent, mostly uniformly leafy to the inflorescence. Leaves: Alternate, dissected, the lobes narrow, 1-2 mm wide, the petioles are incurved-puberulent, the upper leaves reduced, sessile. Flowers: Heads discoid, disk flowers 10-20, cream to white or bright yellow, the corolla lobes about 5, these about as long as the throats, the anthers not or only slightly exserted, these light yellow, involucres 4-6 mm high. Fruits: Achenes black, obpyramidal, 4-5 angled. Pappi of 10-20 lanceolate, hyaline paleae, tipped with small awns. Ecology: Found on mesas, plains, roadsides, and along steams, from 3,500-7,500 ft (1067-2286 m); flowering June-October. Distribution: Arizona, California, Nevada. Notes: Good indicators for this species are the incurved-puberluent petioles and the short lobes of the disk corollas, which are about as long as the throats. Ethnobotany: Unknown Etymology: Hymenothrix comes from Greek hymen, meaning membrane and thrix, bristle, while loomisii is named for Harold Frederick Loomis (1896-1976) an American botanist and horticulturalist. Synonyms: None Editor: LCrumbacher 2011
Hymenothrix loomisii image
Max Licher  
Hymenothrix loomisii image
Max Licher  
Hymenothrix loomisii image
Max Licher  
Hymenothrix loomisii image
Max Licher  
Hymenothrix loomisii image
Max Licher  
Hymenothrix loomisii image
Max Licher  
Hymenothrix loomisii image
Hymenothrix loomisii image
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Hymenothrix loomisii image
Jack Dash  
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Hymenothrix loomisii image
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Hymenothrix loomisii image
Hymenothrix loomisii image
Jack Dash  
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