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Tetraneuris ivesiana Greene  
Family: Asteraceae
Ives' Four-Nerve Daisy, more...Ives' fournerved daisy, Ives' four-nerve-daisy
[Actinea leptoclada var. ivesiana, moreHymenoxys acaulis var. ivesiana (Greene) Parker, Hymenoxys argentea var. ivesiana (Greene) Cronq., Hymenoxys ivesiana (Greene) Parker, Tetraneuris mancosensis A. Nels., Tetraneuris pilosa Cockerell]
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Max Licher
  • FNA
  • Resources
Mark W. Bierner, Billie L. Turner in Flora of North America (vol. 21)
Perennials, 10-26+ cm. Caudices ± branched, branches notably thickened distally. Stems (1-)5-20(-30), erect, leafy, ± branched distally. Leaves basal and cauline, entire, glabrous or sparsely to moderately lanuginose to sericeous, usually densely gland-dotted; basal leaves tightly clustered, blades linear-oblanceolate; proximal cauline blades linear-oblanceolate; mid blades linear-oblanceolate to linear, 1.7-2 mm wide; distal blades linear-oblanceolate to linear. Heads (1-)5-30(-40) per plant (1-5 per stem), borne singly or in paniculiform to corymbiform arrays. Peduncles 5-18.5 cm, ± hairy, usually densely hairy distally. Involucres 8-12 × 13-17 mm. Outer phyllaries 7-12, 5-6.4 mm, margins 0-0.3(-0.4) mm wide, usually scarious, abaxial faces ± hairy. Ray florets 7-10; corollas 10-20 mm. Disc florets (40-)80-150+; corollas yellow, 3.3-4.5 mm. Cypselae 3-4.1 mm; pappi of 5-7 lanceolate or obovate to oblanceolate, aristate scales 2.7-4.5 mm. 2n = 28, 30, 56, 60. Flowering Apr-Aug. Roadsides, hillsides, open treeless areas, edges of woods; 1300-2900 m; Ariz., Colo., N.Mex., Utah.
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Patrick Alexander
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Patrick Alexander
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Patrick Alexander
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Patrick Alexander
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The National Science Foundation
Development supported by National Science Foundation Grants (DBI 9983132, BRC 0237418, DBI 0743827, DBI 0847966)
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