This late in the season the majority of the smaller varieties of wild flowers have disappeared. These early blooming species are nearly all annuals, while those flowers that now line the stream sides are chiefly perennials.

Of the latter, one of the most beautiful is the Pink Monkey Flower (Mimulus lewisii). Along the streams that flow through Castle Crest Garden great masses of them flourish. There are also three other kinds of Monkey Flower in bloom -- all which are wheat in color.

The Monk's Hood or Aconite (Aconitum columbianum) is another of these late flowers. It never occurs in masses, as does the Pink Monkey Flower, but is scattered throughout the vegetation of the damp places. Its deep blue blossoms are rather attractive, but the plant is one of the most poisonous in existence.

The swamps just below Park Headquarters abound in large patches of the Swamp Onion (Allium validum). This species is easily identified as it has the typical odor of onions, a characteristic of all members of the genus Allium.

The Pink Spiraea (Spiraea densiflora) is a prominent autumn shrub. Considerable thickets may be found near the streams of Castle Crest Garden.

In the deep forests of Mountain Hemlock, the Prince's Pine or Pipsissewa (Chimaphila umbellata) with its clusters of pink flowers is likewise a common late summer shrub. This is small plant about eight inches in height. An examination of its structure shows it to be a member of the Heath Family.