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Perennial herb, in soil or on or among rocks; rhizome creeping to erect, scaly. Leaf: generally all ± alike (or of 2 kinds, fertile, sterile), generally < 50 cm, often < 25 cm; stipe generally thin, wiry, often dark, ×-section with vascular strands generally 1–3, less often many in circle; blade generally pinnate or ± palmate-pinnate (see Adiantum), often >= 2-compound, abaxially often with glands, ± powdery exudate, hairs, or scales; segments round, oblong, fan-shaped, or other, veins generally free. Sporangia: in sori or not, marginal, submarginal, or along veins, covered by recurved, often modified segment margins (false indusia) or not; true indusia 0; spores spheric, sides flat or not, scar with 3 radiating branches.
± 40 genera, 500 species: worldwide, especially dry areas. [Windham 1993 FNANM 2:122–186] Definition of Cheilanthes, related genera problematic; traditional limits often untenable. —Scientific Editors: Alan R. Smith, Thomas J. Rosatti.
Key to Pteridaceae
Plant in soil or rock crevices; rhizome short- to long-creeping[-decumbent], generally many-branched, scales generally lance-linear, pale to dark, mid-stripe dark or not. Leaf: < 75 cm, young leaf tip hooked or coiled; stipe cylindric, red-brown to ± black; blade generally 2–3-pinnate, generally oblong to narrowly triangular; segments generally small, ± flat or abaxially concave (from recurved margins). Sporangia: along margin, in discrete patches to continuous, partly to completely covered by recurved margin (generally not recurved in Cheilanthes cooperae).Key to Cheilanthes
150+ species: generally America, generally dry areas. (Greek: lip flower, from location of sporangia)
Rhizome short-creeping; scales red-brown, dark mid-stripe 0. Leaf: 10–15(25) cm, 2(3) cm wide, pale to dull green; stipe < 1 mm wide, scales sparse, at base, gland stalks 0–0.3 mm; segments small, ± oblong, ± flat, both surfaces covered with ± clear, sticky exudate from glands; young leaf tip coiled. Sporangia: visible at recurved segment margins; spores ± brown.
Limestone, granite crevices, rocks; 100–1600 m. eastern edge San Bernardino Mountains, eastern Peninsular Ranges (including San Jacinto Mountains), Mojave Desert, w edge Sonoran Desert; Baja California. [Online Interchange]
Previous taxon: Cheilanthes parryi
Next taxon: Cheilanthes wootonii
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Nov 20 2014
Citation for this treatment: [Author of taxon treatment] 2013. Cheilanthes, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=19094, accessed on Nov 20 2014
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|Geographic subdivisions indicated for the distribution of Cheilanthes viscida|| Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
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