Difference between revisions of "Acaena pinnatifida"
Fl. Peruv. 1: 68, plate 104, fig. b. 1798.
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|special_status={{Treatment/ID/Special_status | |special_status={{Treatment/ID/Special_status | ||
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|name=Acaena californica | |name=Acaena californica | ||
|authority=Bitter | |authority=Bitter | ||
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|name=A. pinnatifida var. californica | |name=A. pinnatifida var. californica | ||
|authority=(Bitter) Jepson | |authority=(Bitter) Jepson | ||
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}} | }} | ||
|hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Agrimonieae;Acaena;Acaena pinnatifida | |hierarchy=Rosaceae;Rosaceae subfam. Rosoideae;Rosaceae tribe Agrimonieae;Acaena;Acaena pinnatifida | ||
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name=Acaena pinnatifida | name=Acaena pinnatifida | ||
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|authority=Ruiz & Pavón | |authority=Ruiz & Pavón | ||
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|publication title=Fl. Peruv. | |publication title=Fl. Peruv. | ||
|publication year=1798 | |publication year=1798 | ||
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| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V9/V9_529.xml |
|subfamily=Rosaceae subfam. Rosoideae | |subfamily=Rosaceae subfam. Rosoideae | ||
|tribe=Rosaceae tribe Agrimonieae | |tribe=Rosaceae tribe Agrimonieae | ||
Latest revision as of 22:57, 5 November 2020
Plants from branched woody caudex. Stems decumbent, becoming suberect, 1.5–5 dm (in fruit), 4 mm diam.; branches erect or leafy. Leaves (crowded at bases of stems); stipules absent; petiole to 4 cm; blade 3–15 cm, leaflets 6–10 per side, gray-green (at least on dried specimens), ovate, 4–10 mm, pinnatisect, lobes 3–7(–11), linear, margins revolute, apex penicillate (having a little brush or tuft of hairs at tips), abaxial surface sericeous, adaxial sparsely pilose. Scapes terminal, to 50 cm, 1.5–3 mm diam., sparsely pilose, proximal scape and leaf sheaths with multicellular hairs among 1-celled hairs, with (0–)2–3 cauline leaves to 10 cm. Inflorescences 15–35-flowered, interrupted spikes, (flowers crowded distally, 2–15 cm in flower, elongating to 50 cm in fruit); bracteoles leaflike to linear, ciliate. Flowers 6 mm diam.; sepals 4–5, elliptic, 3 mm, abaxially pilose, adaxially glabrous; stamens usually 4, filaments 2–3 mm, anthers dark red; stigma rose, laciniate. Fruiting hypanthia ovoid, 3–4 mm diam., surfaces tomentose, obscurely 4-angled, bearing 10–20 spines in longitudinal ranks, to 3[–4] mm, spines with retrorse hairs or barbs.
Phenology: Flowering Mar–Jun.
Habitat: Coastal grasslands, open rocky slopes, sand dunes, old roadsides
Elevation: 50–400 m
Distribution
Calif., South America (Argentina, Chile).
Discussion
Herbarium records indicate occurrences of Acaena pinnatifida between Santa Barbara and Sonoma counties.
Selected References
None.