FAMILIES OF PLANTS 
113 
Castilleja brachyantha 
Castilleja confusa 
Castilleja exilis 
Castilleja flava 
Castilleja gracillima 
Castilleja lancifolia 
Castilleja lauta 
Castilleja linariaefolia 
Castilleja longispica 
Castilleja lutea 
Castilleja miniata 
Castilleja oecidentalis 
Castilleja pallescens 
Castilleja pilosa 
Castilleja pulchella 
Castilleja rhexifolia 
Castilleja suksdorfii 
Castilleja villosa 
Owlclover (Orthocarpus luteus) is quite similar to the paintbrush 
in some respects, but the two lips of the corolla are nearly equal in 
length, while in the paintbrush they are very unequal. The bracts are 
yellowish, and the corolla is golden yellow, and 2 or 3 times the length 
of the calyx. The whole plant is quite hairy. 
BLADDERWORT PA MIL Y (UTRICULARIACEAE) 
A small family of water plants with peculiar bladders on the sub¬ 
merged leaves. Represented here by the Common bladderwort ( TJtri - 
cularia vulgaris) which grows in the water of brooks and ponds. 
The leaves are 2 or 3 times pinnately divided into very narrow seg¬ 
ments and usually bear numerous bladders. The flowers are yellow 
and irregular and are borne on erect stems, 4 to 12 inches high. 
Both calyx and corolla are strongly 2-lipped and there are 2 stamens 
and 1 pistil. 
Utricularia minor has also been reported in the park. 
BROOMRAPE FAMILY (OROBANCHACEAE) 
A small family of plants which lack green leaves and obtain their 
carbohydrates by growing as parasites on the roots of other plants. 
Possibly represented here by a single species, the Western ghostpipe 
(Thalesia fasciculata) , which grows attached to the roots of sage¬ 
brush, buckwheat, and perhaps other plants. It is quite hairy 
and somewhat sticky. The stem is short and bears scattered scales. 
The numerous flowers are borne on stalks that are about as long as 
the main stem. The flowers are yellow or purplish, the corolla being 
about an inch long and somewhat two-lipped at the end. 
Thalesia lutea has also been reported in the park, so also has the 
Broomrape (Orobanche ludoviciana ). 
PLANTAIN FAMILY (PL ANT AGIN ACE AE) 
A small family of somewhat weedy plants with basal leaves and a 
spike of small, greenish flowers. The three species that have been 
found in the park may be distinguished in the following manner: 
