OENOTHERA—Evening Primrose 
eaespitosa—One of the choicest native American plants for 
the rockery. A succession of very large white flowers that 
turn pink the second day. Long blooming period. 5 inches. 
Sun and good drainage. WNA . 15c 
OPUNTIA—Hardy Prickly Pear Cactus 
polyacantha—Hardy anywhere if given good drainage. Very 
showy yellow flowers in June. WNA. Start seeds in sand with 
a little charcoal ..-. 10c 
PARNASSIA 
flmbriata—Fringed Parnassia. Clumps of violet-like leaves 
give rise to attractive white flowers in late summer. Mois¬ 
ture but good drainage. WNA . 15c 
PENSTEMON — Beard tongue. One of America’s outstanding 
contributions to the garden. A glorious group of mostly west¬ 
ern plants. 
angustifolius—Grayish-green foliage; blue flowers. Give it 
good drainage. WNA . 15c 
eonfertus—Dense whorls of creamy white flowers. 12 inches. 
Sun and good drainage. WNA . 15c 
ellipticus—Low dense clumps of dark green, covered with large 
lavender flowers. Very desirable. WNA . 15c 
linearifolius—Similar to the preceding but more upright and 
with flowers usually more pink. WNA . 15c 
nitidus—Masses of brilliant blue flowers and gray-green leaves. 
10 inches. WNA. One of the best . 15c 
procerus (coeruleo-purpureus)—Similar to confertus with 
purplish-blue flowers. WNA . 15c 
virens—Another fine species with deep rich blue flowers. One 
of the easiest. WNA . 15c 
PH A CELIA 
Lyallii—Alpine Phacelia—Feathery masses of purplish-blue 
flowers. A fine plant and easy from seed. WNA . 15c 
sericea—Silky Phacelia—Similar but earlier flowering with 
deep purple flowers and deeply cut silky gray leaves. Both 
want sun and good drainage. WNA . 15c 
PHYSARI A 
didymocarpa—A rare and choice little plant with rosettes of 
gray leaves and pale yellow flowers that are later replaced by 
pink and green balloon-like pods. Sharp drainage ... 25c 
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