Difference between revisions of "Antennaria dioica"
Fruct. Sem. Pl. 2: 410. 1791.
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|name=Antennaria hyperborea | |name=Antennaria hyperborea | ||
|authority=D. Don | |authority=D. Don | ||
| − | }}{{Treatment/ID/Synonym | + | }} {{Treatment/ID/Synonym |
|name=Antennaria insularis | |name=Antennaria insularis | ||
|authority=Greene | |authority=Greene | ||
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|elevation=0–600 m | |elevation=0–600 m | ||
|distribution=Alaska (Aleutian Islands);Eurasia. | |distribution=Alaska (Aleutian Islands);Eurasia. | ||
| − | |discussion=<p>Antennaria dioica ranges from the British Isles to Japan and into the Aleutian Islands (R. J. Bayer 2000). It is characterized by glabrous adaxial leaf faces and distally pink or white phyllaries. The circumscription of A. dioica in North America has long been debated; A. marginata of southwestern states bears a remarkable similarity to A. dioica. DNA sequence data (Bayer et al. 1996) indicate that the two taxa are not sisters; they are only distantly related. They are allopatric. Antennaria dioica may be a sexual progenitor of the A. parvifolia complex.</p> | + | |discussion=<p><i>Antennaria dioica</i> ranges from the British Isles to Japan and into the Aleutian Islands (R. J. Bayer 2000). It is characterized by glabrous adaxial leaf faces and distally pink or white phyllaries. The circumscription of <i>A. dioica</i> in North America has long been debated; <i>A. marginata</i> of southwestern states bears a remarkable similarity to <i>A. dioica</i>. DNA sequence data (Bayer et al. 1996) indicate that the two taxa are not sisters; they are only distantly related. They are allopatric. <i>Antennaria dioica</i> may be a sexual progenitor of the <i>A. parvifolia</i> complex.</p> |
|tables= | |tables= | ||
|references= | |references= | ||
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|publication year=1791 | |publication year=1791 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V19_654.xml |
|tribe=Asteraceae tribe Gnaphalieae | |tribe=Asteraceae tribe Gnaphalieae | ||
|genus=Antennaria | |genus=Antennaria | ||
Revision as of 15:13, 18 September 2019
Dioecious. Plants 3–10 cm. Stolons 2–5 cm. Basal leaves 1-nerved, spatulate or rhombic-spatulate, 3–18 × 3–6 mm, tips mucronate, abaxial faces gray-tomentose, adaxial green-glabrous. Cauline leaves linear, 7–13 mm, not flagged (apices acute). Heads 3–7 in corymbiform arrays. Involucres: staminate 5–6.5 mm; pistillate 5–7 mm. Phyllaries distally dark pink to light pink or white. Corollas: staminate 3–4 mm; pistillate 4–5 mm. Cypselae 0.5–1 mm, papillate; pappi: staminate 3.5–4.5 mm; pistillate 5–6 mm. 2n = 28.
Phenology: Flowering summer.
Habitat: Dry slopes on tundra
Elevation: 0–600 m
Distribution
Alaska (Aleutian Islands), Eurasia.
Discussion
Antennaria dioica ranges from the British Isles to Japan and into the Aleutian Islands (R. J. Bayer 2000). It is characterized by glabrous adaxial leaf faces and distally pink or white phyllaries. The circumscription of A. dioica in North America has long been debated; A. marginata of southwestern states bears a remarkable similarity to A. dioica. DNA sequence data (Bayer et al. 1996) indicate that the two taxa are not sisters; they are only distantly related. They are allopatric. Antennaria dioica may be a sexual progenitor of the A. parvifolia complex.
Selected References
None.