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Thymophylla

Thymophylla
Family: Asteraceae
Thymophylla image
Max Licher
  • FNA
  • Resources
John L. Strother in Flora of North America (vol. 21)
Annuals, perennials, subshrubs, or shrubs, (1-)5-30 cm. Stems erect to spreading or decumbent, branched from bases or ± throughout. Leaves cauline; opposite or alternate; petiolate or sessile; blades often pinnately lobed, blades or lobes spatulate to linear or filiform, ultimate margins entire or toothed, faces glabrous or arachnose, canescent, floccose, lanate, puberulent, or tomentose (bases little, if at all, bristly-ciliate, oil-glands scattered in laminae or submarginal). Heads usually radiate, sometimes discoid or radiant, borne singly. Calyculi 0 or of 1-8 deltate to linear bractlets (bearing oil-glands). Involucres campanulate to obconic, 2-7 mm diam. Phyllaries persistent, 8-13(-22) in ± 2 series (strongly connate 2/3-7/8+ their lengths, seldom with outer margins distinct more than 1/2 their lengths, exceptions: T. aurea, T. pentachaeta var. belenidium), usually bearing oil-glands. Receptacles convex, smooth or ± pitted, epaleate. Ray florets usually 5, 8, 13, or 21, pistillate, fertile; corollas usually yellow to orange, rarely white. Disc florets 16-100+, bisexual, fertile; corollas yellow to orange, tubes shorter than ± cylindric throats, lobes 5, deltate. Cypselae obpyramidal, obconic, or cylindro-clavate, glabrous or sparsely strigillose; pappi persistent, coroniform or of 10(-20) distinct scales (each scale erose, or 1-5-aristate, or a fascicle of 5-9 basally connate bristles). x = 8.
Species within checklist: NAU-Yuma BSC 414
Thymophylla acerosa
Media resource of Thymophylla acerosa
Map not
Available
Thymophylla anomala
Media resource of Thymophylla anomala
Map not
Available
Thymophylla aurantiaca
Media resource of Thymophylla aurantiaca
Map not
Available
Thymophylla aurea
Media resource of Thymophylla aurea
Map not
Available
Thymophylla belenidium
Media resource of Thymophylla belenidium
Map not
Available
Thymophylla concinna
Media resource of Thymophylla concinna
Map not
Available
Thymophylla gentryi
Media resource of Thymophylla gentryi
Map not
Available
Thymophylla gypsophila
Media resource of Thymophylla gypsophila
Map not
Available
Thymophylla micropoides
Media resource of Thymophylla micropoides
Map not
Available
Thymophylla mutica
Media resource of Thymophylla mutica
Map not
Available
Thymophylla pentachaeta
Media resource of Thymophylla pentachaeta
Map not
Available
Thymophylla pringlei
Media resource of Thymophylla pringlei
Map not
Available
Thymophylla setifolia
Media resource of Thymophylla setifolia
Map not
Available
Thymophylla tenuifolia
Media resource of Thymophylla tenuifolia
Map not
Available
Thymophylla tenuiloba
Media resource of Thymophylla tenuiloba
Map not
Available
Thymophylla tephroleuca
Media resource of Thymophylla tephroleuca
Map not
Available
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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