FAMILIES OF PLANTS 
131 
Helianthm annum is an annual with lower leaves mostly alternate, 
broadly ovate and more or less heart-shaped at the base. The other 
two species are perennials. 
Helianthella quinquenervis .■—-Although helianthella means little 
sunflower, this plant is not very little. In fact, it is about as large 
as many of the true sunflowers. It grows 2 to 4 feet high and its 
lance-shaped leaves are 4 to 12 inches long and are mostly opposite. 
The uppermost leaves are sessile while the lowermost have long 
petioles. The yellow disk is about an inch across, and the pale 
yellow ray flowers are more than an inch long. 
Helianthella uniflora is only about half as large, and the disk is 
purple. 
Helianthella douglasii has also been reported in the park. 
Tarweed ( Madia glomerate) .—A somewhat sticky and rather heavy- 
scented plant. The rigid stems are 8 to 20 inches high, quite hairy ^ 
and very leafy. The leaves are narrowly linear and alternate. The 
heads are borne in a more or less spherical cluster and are few-flow¬ 
ered. There are usually 2 to 5 ray flowers and about the same num¬ 
ber of disk flowers, both yellow, but sometimes there are no ray 
flowers at all. The involucre is somewhat angled because of the 
narrow backs of the bracts, and on the receptacle there is a single 
row of bracts which enclose the flowers as a sort of inner involucre. 
The akenes are narrow and more or less angled. There is no pappus. 
Eriophyllum integrifoUum.—A low, woolly plant with clustered 
stems, 4 to 12 inches high, and alternate, spatula-shaped leaves which 
are either entire or 3-lobed. The heads have rather long stems and 
contain a relatively small number of both ray and disk flowers, both 
of which are yellow. The involucre is cylindrical and consists of 
6 or 8 narrowly oblong bracts. The pappus consists of several scales 
and the akenes are narrow, more or less angled and smooth. 
Brides-bouqnet ( Ohaenactis douglasii) .—-This plant has stems 4 to 
16 inches high and alternate leaves which are twice pinnately dis¬ 
sected into crowded, short lobes. The heads consist of white or 
pinkish disk flowers with no ray flowers. The entire plant is whitish 
with a fine, white down. 
Gailiardia ( Gaillardia arisiata). —-A more or less hairy plant, 20 
to 30 inches high, with alternate, lance-shaped or spatula-shaped 
leaves which vary from entire to toothed or lobed. The heads are 
large and contain both ray and disk flowers both of which are yellow, 
although the disk flowers are apt to turn brown. The ray flowers 
are an inch or more long and are 3-toothed or 3To bed at the end. 
The lobes of the disk flowers are tipped with sharp points which are 
covered with beaded hairs. The bracts of the involucre are in 2 or 
3 series and are quite hairy. The pappus is conspicuous, longer than 
