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Compilation
Asclepias rivularis

7 Images see all

Isotype of Gomphocarpus rivularis Schltr. [family ASCLEPIADACEAE]
Gomphocarpus rivularis Schltr. [family ASCLEPIADACEAE]
Isotype of Asclepias rivularis Schlechter [family ASCLEPIADACEAE]
Gomphocarpus rivularis Schltr. [family ASCLEPIADACEAE]
Type of Asclepias rivularis (Schltr.) Schltr. [family APOCYNACEAE]
Isotype of Gomphocarpus rivularis Schltr. [family ASCLEPIADACEAE]
Gomphocarpus rivularis Schltr. [family ASCLEPIADACEAE]
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Name

Identification
Asclepias rivularis (Schltr.) Schltr. [family APOCYNACEAE ] Verified by Not on sheet, Gomphocarpus rivularis Schltr. [family APOCYNACEAE ] (stored under name); Verified by Not on sheet,
Related name
  • Gomphocarpus rivularis
  • Gomphocarpus physocarpus
  • Asclepias rivularis
  • Gomphocarpus verticillatus

Flora

Entry for ASCLEPIAS rivularis Schlechter [family ASCLEPIADACEAE]
Herbarium
Royal Botanic Gardens, Kew (K)
Collection
Flora Capensis
Resource Type
Reference Sources
Entry From
Flora Capensis, Vol 4, page 518, (1909) Author: By N. E. BROWN.
Names
ASCLEPIAS rivularis Schlechter [family ASCLEPIADACEAE], in Journ. Bot. 1896, 455;—Schlechter in Ann. Naturhist. Hofmus. Wien, xv. 68.
Gomphocarpus rivularis Schlechter [family ASCLEPIADACEAE], in Engl. Jahrb. xx. Beibl. 51, 36.
Information
stems many from the same root and leafy to the base, growing to a height of 4 ft., simple, glabrous; leaves in whorls of 3–4 or the uppermost sometimes opposite, petiolate, 2 1/2–4 in. long, 1 1/2–5 1/2 lin. broad, from almost linear to narrowly lanceolate, tapering to a very acute apex, cuneate-acute at the base, glabrous, sometimes minutely ciliate when young; umbels numerous, lateral at the nodes, racemose, pedunculate, 8–25-flowered; peduncles 1–1 3/4 in. long, glabrous; bracts very caducous, only seen on very young umbels, numerous, 2 1/2–3 lin. long, linear-subulate, glabrous; pedicels 3/4–1 1/4 in. long, slender, glabrous; sepals 1 1/2–2 lin. long, 2/3– 3/4 lin. broad, ovate-lanceolate, acute or acuminate, glabrous; corolla-lobes reflexed, 2 1/2–3 1/2 lin. long, 1 1/2–1 3/4 lin. broad, lanceolate-oblong, obliquely notched at the obtuse apex, glabrous on both sides, often ciliate on one margin, white; corona-lobes arising 1/3– 1/2 lin. up the staminal column and shorter than it, erect, cucullate, about 1 lin. long from the truncate base to the obliquely truncate top, about 2/3– 3/4 lin. broad, the inflexed sides produced into erect acute points about 1/2 lin. long, without a tooth or process within; staminal column 2–2 1/4 lin. long; anther-appendages rather broader than long, subtruncately emarginate, rounded at the sides, slightly folded back longitudinally, loosely inflexed over the slightly depressed-truncate style-apex; follicles solitary, 1 1/4–2 1/4 in. long, nearly 1 in. thick, ovoid, ellipsoid or elongate-obovoid, very obtuse, glabrous, apparently somewhat fleshy; seeds about 2 1/2 lin. long, 1 3/4 lin. broad, ovate, central part smooth and slightly convex on both sides, surrounded by a broad transversely plicate-wrinkled rim, glabrous, brown. null
Distribution
EASTERN REGION growing in water and very wet situations: Transkei; Bashee River, Drège, 4942! Tsomo River, Bowker and Mrs. Barber, 869! Illitooli River; Bowker and Mrs. Barber, 824! Tembuland; Bazeia, Baur, 487! Qumankwe River, near Engcobo, Bolus, 10202! Griqualand East; near Clydesdale, Tyson, 3119! banks of the Umzimhlava River, Krook, 795! Schlechter, 6541! near Kokstad, Haygarth in Herb. Wood, 4257! Pondoland, Drège, 4943!KALAHARI REGION Transvaal; Mooi River, Burke, 331! and probably from the same locality, Zeyher, 1166! Derde Poort, near Pretoria, Rehmann, 4782! in streams near Middelburg, Schlechter, 3789! Potchefstroom, Burtt Davy, 2174! Piet Retief, Burtt Davy, 1932! between Middelburg and Crocodile River, Wilms, 949! stream between Carolina and Wonderfontein, Burtt Davy, 2993! Potgeiters Rust, Rogers, 538!

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