JROCKROSE FAMILY 
( Cistacece) 
(A) Frostweed; Rockrose (Eelianthemum cana- 
dense ). This little perennial is very remarkable and 
nnique, because' late in autumn, crystals of ice form 
about the cracked bark of the root. It is also remark¬ 
able for the fact that it has two sets of flowers, the 
first ones in June and later ones in July or August. 
The leaves are small, oblong-lanceolate, hoary with 
white hairs on the under side, alternating along the 
stem that rises from 10 to 18 inches high. Both the 
early and late flowers are fertile. Frostweed grows 
in sandy, dry soil, from Me. to Minn, and southwards. 
(B) Hudsonia (Hudsonia tomentosa ) is a low branch¬ 
ing, little shrub rising only 5 or 10 inches above ground. 
Its branching stems are closely crowded with tiny, scale-like, 
oval leaves about one-half inch long. 
The small, yellow flowers that are crowded along the 
ends of the branches, open only in sunshine; the five 
tiny yellow petals surround numerous stamens and a 
long, slender style. Hudsonia is found on sandy shores 
from N. B. to Va. and along the Great Lakes. 
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