Difference between revisions of "Opuntia humifusa"
Med. Fl. 2: 247. 1830.
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|common_names=Eastern pricklypear | |common_names=Eastern pricklypear | ||
| − | |basionyms={{Treatment/ID/ | + | |basionyms={{Treatment/ID/Basionym |
|name=Cactus humifusus | |name=Cactus humifusus | ||
|authority=Rafinesque | |authority=Rafinesque | ||
| + | |publication_title=Ann. Nat. | ||
| + | |publication_place=1: 15. 1820 | ||
}} | }} | ||
|synonyms= | |synonyms= | ||
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|publication year=1830 | |publication year=1830 | ||
|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/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_242.xml |
|subfamily=Cactaceae subfam. Opuntioideae | |subfamily=Cactaceae subfam. Opuntioideae | ||
|genus=Opuntia | |genus=Opuntia | ||
Revision as of 20:00, 24 September 2019
Shrubs, forming clumps or often prostrate, usually only 1 or 2 stem segments tall, to 0.5 m (except in Florida where they may be erect and reach to 2+ m with short trunk), flattened to obovoid, sometimes from tuberlike rootstocks. Stem segments not disarticulating, dark or bright shiny green, wrinkling when stressed, circular to broadly oblong to obovate, 5–17.5 × 4–12 cm, fleshy, usually tuberculate, glabrous; areoles 4–6 per diagonal row across midstem segment, oval to circular, 2–4 mm diam., not raised, sometimes somewhat sunken; wool tan to brown. Spines often absent or 1–2(–3) per areole, spreading, whitish to brownish, terete, straight, and usually stout, 25–60 mm; occasionally also 1 deflexed spine present. Glochids in dense crescent of adaxial edge of areole and in dense tuft overtopping crescent in age, yellow to red-brown, to 4 mm. Flowers: inner tepals pale to bright yellow throughout, 20–30 mm diam.; filaments yellow to orange; anthers pale yellow to cream; style and stigma lobes white. Fruits greenish, tardily becoming apricot to brownish red, elongate, 30–50 × 12–20 mm, fleshy, tapering at base; pulp green and sour, becoming reddish and sweet under ideal conditions; areoles 10–18. Seeds tan, 3.5–4.5 mm diam., thickish; girdle protruding to 1 mm.
Distribution
United States.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Shrubs forming clumps, often prostrate, usually only 1 or 2 stem segments tall, to 0.5 m | Opuntia humifusa var. humifusa |
| 1 | Shrubs or small trees, erect, to 2 m | Opuntia humifusa var. ammophilia |