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Published In: Gentes Herbarum; Occasional Papers on the Kinds of Plants 5(9): 693–695, f. 312. 1945. (Gentes Herbarum) Name publication detail
 

Project Name Data (Last Modified On 9/22/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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12. Rubus mollior L.H. Bailey

Map 2510

Canes to 250 cm long and 100–180 cm tall, 4–9 mm in diameter. Prickles moderate, 0.7–2.2 per cm of cane, 5–7 mm long. Petioles with dense nonglandular hairs, armed with broad-based downward-curved prickles to 3 mm long. Stipules 7–10 mm long, linear. Primocane leaflet margins finely toothed, the upper surface thinly hairy, the undersurface velvety hairy, often appearing grayish with a rusty midvein. Central primocane leaflets 7.5–11.0 cm long, 4.0–6.5 cm wide, elliptic-obovate or oblong-obovate, rounded at the base, short-tapered to a sharply pointed tip, the leaflet stalk about 1/5–3/10 as long as the leaflet blade; lateral leaflets elliptic-obovate, rounded to angled at the base, abruptly short-tapered to a sharply pointed tip, the middle pair stalked, the basal pair nearly sessile. Inflorescences typically racemose, 9–12 cm long, 4–7 cm wide, with 5–9 flowers and 3–7 bracts, these fairly small at flowering, but sometimes becoming leafy and prominent as the fruits develop, hiding the fruits later in development; flower and inflorescence stalks with nonglandular hairs and occasional needlelike prickles. Sepals 5–6 mm long, 2–4 mm wide, triangular-ovate to elliptic, abruptly tapered to a short, slender point. Petals 10–12 mm long, obovate. Fruits 10–15 mm long, 7–12 mm wide, globose to cylindric. May.

Scattered, mostly south of the Missouri River (Missouri, Arkansas, Oklahoma, and Kansas). Bottomland forests, mesic upland forests, swamps, upland prairies, and margins of ponds and lakes; also fencerows.

Rubus mollior is nearly an Ozark endemic.

 
 


 

 
 
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