YELLOW

[Illustration: Baeria chrysostoma variety gracilis]

Common names: GOLDFIELDS

Arizona desert: (_Baeria chrysostoma_). Yellow. March-May.

Sunflower family. Size: Low growing, usually under 6 inches.

After winters of particularly heavy precipitation, these small

close-growing annuals with their sunflower-like blossoms cover large

patches of desert with a carpet of gold. Individual flowers are so small

and so inconspicuous among larger plants that they are easily passed

unnoticed, but millions of the plants all in blossom at the same time

make a spectacular display that attracts visitors from considerable

distances.

They occur in Arizona below 3,600 feet, westward to California, Lower

California, and north to Oregon. A plant of winter and early springtime,

Goldfields takes advantage of winter moisture and cool spring weather to

produce its flowers and mature its seeds. Thus it escapes the heat and

drought of the desert by lying dormant in the seed stage until the

moisture and cool temperatures of the following winter awaken it.

In common with Goldpoppy and other annuals that mature their seeds

before the summer heat descends upon the desert, Goldfields cannot

correctly be called a “desert plant.” Actually these are plants of

cooler climes which have found winter conditions in the desert ideal for

their needs and have established themselves.

These plants demonstrate effectively one method, that of escaping the

heat and drought, by which plants have adapted themselves to survival in

the desert. Like the winter tourist, they take advantage of ideal

climatic conditions of winter and spring. Since, unlike the winter

tourist, they cannot return north for the summer, they take the next

best course and pass through the hot, dry period in the dormancy of the

seed phase of their life cycles.

Flowers of the Southwest Deserts · 第 47 / 109 题