I 5 2 ROSE ORDER 



x. Leaves opposite; stems spiny; style not 



plumy COLEOGYNE 



y. Leaves alternate; stems not spiny; style 



long and plumy CERCOCARPUS 



b. Flowers several-many in a cluster 



(1) Leaves 3-7-cleft; style becoming long and 



plumy FALLUGIA 



(2) Leaves lobed, toothed or entire; style not 



plumy 



(a) Flowers in panicles 



x. Ovary and fruit 1-seeded HOLODISCUS 



y. Ovary and fruit several-seeded SPIRAEA 



(b) Flowers in corymbs or spikes 



x. Flowers in corymbs ; leaves mostly 3-5- 



lobed; stems 1-6 ft. high OPULASTER 



y. Flowers in spikes; leaves entire; stems 



dwarf, in mats PETROPHYTUM 



b. Leaves compound 



(1) Flowers yellow; leaflets 5-7, entire DASYPHORA 



(2) Flowers white 



(a) Flowers in a panicle; leaves twice-pin- 



nately dissected CHAMAEBATIARIA 



(b) Flowers 1-few in a cluster; leaves pin- 



nate of 3-5 leaflets RUBUS 



(3) Flowers rose to red, rarely white; leaves 



pinnate of 3-11 (usually 5-9) leaflets ROSA 



AGRIMONIA Linne 1753 AGRIMONY 

 (Of uncertain origin) 



Sepals 5, forming a hemispheric to top-shaped tube with hooked 

 bristles above, petals 5, yellow, stamens 5-15, carpels 2, stigma 2-lobed, 

 fruit 1-2 achenes ; flowers in spiked racemes ; leaves alternate, odd-pinnate, 

 with smaller lobes between the larger leaflets ; perennial. 

 Stems 1-5 ft. high; leaves hairy to smooth; flowers 

 6-12 mm. wide A. eupatoria 



ARGENTINA Lamarck 1778 SILVERWEED 

 (Lat. argentinuSj silvery, from the leaves) 



Sepals 5, united into a concave tube with 5 alternating bracts, petals 

 5, yellow, stamens 20-25, pistils many, style thread-like, attached near the 



