, 3 2 ROSE FAMILY 



panicle 10-20 cm. long, 5-9 cm. in diameter, flowers numerous, white, 

 6-7 mm. wide, petals orbicular 2.5 mm. in diameter, stamens numerous: 

 salicifolia, leaves as in Salix, the willow. 



Mostly in low moist ground throughout the state. Distributed from 

 N. V. to N. C, Mo. and northwestward; also in Asia. 



Flowers in July, fruits in Sept. 



Spiraea tomentosa L inn e 1753 Hardhack, Steeple Bush 



Erect shrub, .5-1.2 meters (1.5-4 ft.) high, *wigs covered with woolly 

 pubescence; leaves obovate to oblong, tapering towards the base, coarsely 

 serrate or toothed, glabrous above, densely white-woolly beneath, or some- 

 times rusty along the veins, 3-6 cm. long, 1-2 cm. wide, short petioled or 

 almost sessile; flowers in racemes, crowded into a dense panicle, pink or 

 rose color, rarely white ; follicles 5, woolly, 2-2.5' mm. long : tomentos a, 

 hairy, referring to the twigs and leaves. 



In moist meadows, swamps and low grounds; frequent in the eastern 

 part of the state from the Twin Cities northward towards Duluth. 



Distributed from New Brunswick and Nova Scotia to the mountains 

 of Ga., west to Minn, and Kan. 



Blossoms in July and August, fruits in Sept. 



Sorbaria A. Bra u n 1864 



(From Sorbus, the mountain ash, in allusion to the similar leaves) 

 Shrubs, more or less branched; leaves alternate, compound, odd-pin- 

 nate, leaflets oblong-lanceolate, sessile, sharply serrate ; flowers white, 

 small, in large panicles, calyx 5-lobed, petals 5, spreading; stamens 

 numerous; carpels 5, opposite the calyx lobes. 



Shrubs of the aspect of Spiraea. A genus of 5 species, four in Asia 

 and one in North America. 



Sorbaria sorbifolia A. Bran 11 1864 

 Spiraea sorbifolia Linne 1753 

 Basilima sorbifolia Rafinesque 1836 



Erect shrub, 1-2 meters (3-6 ft.) high, (sometimes almost herbaceous), 

 with gray bark, leaves 10-40 cm. long, leaflets 13-21, lanceolate, with 

 many straight veins running from the mid-vein, narrowed at the base, 

 acuminate at the apex, stellate pubescent beneath when young, 7-10 cm. 



