Plant: Allegheny Blackberry

Name: Rubus allegheniensis Porter	Description: Family: Rosaceae Growth Form: perennial shrub, reproducing by seeds and underground runners Stems: erect or high-arching 1-3 meters high .  Primocanes arching,  often ridged or angled and finely pubescent.  Floricanes  mostly retaining strong scattered prickles, normallly erect, but sometimes depressed with fruit Leaves:  Primocane leaflets mostly palmately compound, the upper 3 conspiciously stalked, the petioles prickly, pubescent, and grandular;  the blades oblong or elliptic to ovate and gradually tapering Flower Arrangement:  in elongated racmes, 8-25 cm. long, extending beyond the foliage Flowers:  12-30 on long clusters, about 2 cm. in diameter, widely opening Petals:  narrow, white, noticeably separate Stamens: Pistil:  Fruits: globose to thimble-shaped, compound, 2-cm or more long, made up of 50-70 drupelets	Discussion: This is a variable species with several varieties.  Flowers from May-June; fruiting in July. They form thickets and bramble patches.
Image:	Location: Habitat:  roadside lowlands Range:  throughout  most of the northeastern United States, south in the mountains to North Carolina and Tennessee, west to Missouri and Minnesota; north into Canada from Quebec to Nova Scotia.	Waypoint:  N 38 degrees 34.755 minutes W 89 degrees 04.146 minutes Elevation 475 feet

© Copyright 2004, Odin Public School #700, all rights reserved.
Photos courtesy: Odin Tech Prep Team 2004
Project courtesy: Grant Arnold, Deniz Hawley, Kristen Minor, Brian Deadmond.

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