Antennaria solitaria — Details

Antennaria solitaria Rydb.:
United States (North America)

Gleason, H. A. 1968. The Sympetalous Dicotyledoneae. vol. 3. 596 pp. In H. A. Gleason Ill. Fl. N. U.S. (ed. 3). New York Botanical Garden, New York. http://www.tropicos.org/Reference/1707
Radford, A. E., H. E. Ahles & C. R. Bell. 1968. Man. Vasc. Fl. Carolinas i–lxi, 1–1183. University of North Carolina Press, Chapel Hill. http://www.tropicos.org/Reference/636
Small, J. K. 1933. Man. S.E. Fl. i–xxii, 1–1554. Published by the Author, New York. http://www.tropicos.org/Reference/1515
Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York. http://www.tropicos.org/Reference/1327
Cronquist, A. J. 1980. Asteraceae. 1: i–xv, 1–261. In Vasc. Fl. S.E. U. S. The University of North Carolina Press, Chapel Hill. http://www.tropicos.org/Reference/1714

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National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

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Physical Description

Morphology

Comments

With its relatively large, 3–5-nerved, basal leaves and relatively large heads borne singly, Antennaria solitaria is an easily recognized amphimictic member of the Catipes group (R. J. Bayer and G. L. Stebbins 1982). It is a sexual diploid progenitor of the A. parlinii polyploid complex.

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Description

Dioecious. Plants 2–25(–35) cm. Stolons 5.5–20 cm (filiform). Basal leaves: 3–5-nerved, obovate to broadly oblong-spatulate, 20–75 × 15–45 mm, tips mucronate, abaxially tomentose, adaxially gray-pubescent to floccose-glabrate. Cauline leaves linear, 1–17 mm, distal flagged. Heads borne singly. Involucres: staminate 8–11 mm; pistillate 8–14 mm. Phyllaries (bases green or brown) distally white. Corollas: staminate 3.8–5.5 mm; pistillate 4.5–7 mm. Cypselae 1–2 mm, papillate; pappi: staminate 4.5–7 mm; pistillate 6–9 mm. 2n = 28.

Flora of North America @ eFloras.org

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Diagnostic Description

Synonym

Antennaria plantaginifolia (Linnaeus) Richardson var. monocephala Torrey & A. Gray, Fl. N. Amer. 2: 431. 1843, not A. monocephala de Candolle 1838; A. monocephala (Torrey & A. Gray) Greene

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Conservation

Conservation Status

NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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National NatureServe Conservation Status

United States

Rounded National Status Rank: N5 - Secure

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