According to observations of naturalists and beekeepers.
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SOURCE FOR HONEY BEES:
Desert apricot has little or no value to browsing animals. Tannic acids and cyanogenic glucosides in the leaves discourage consumption. Extrafloral nectaries attract a variety of insects, particularly wasps and ants, to the leaves. The presence of these insects further discourages browsing.
This plant is present in at least 1 states/provinces in this country.
Desert apricot is a rigidly branched, native, deciduous shrub or small tree. It grows from 5 to 13 feet tall (1.5-4 m) and has glabrous, spine-tipped twigs. Leaves are round and 0.5 to 0.75 (1-2 cm) long. It bears a stone fruit which is 0.32 to 0.56 inches long (8-14 mm).
Desert apricot flowers from February to March.
Brassica napus (aka: Rapeseed)
Sinapis arvensis (aka: Charlock mustard, California rape, Charlock, Corn mustard, Canola, Kaber mustard, Rapeseed mustard)
Asclepias tuberosa (aka: Butterflyweed, Butterfly Milkweed, Orange Milkweed, Pleurisy Root, Chigger Flower, Canada root, Fluxroot, Indian paintbrush, Indian posy, Orange root, Orange Swallow-wort, Tuber root, Yellow milkweed, White-root, Windroot, Butterfly love)
Calendula officinalis (aka: Marigold, Calendula, Pot marigold, English marigold)
Cucumis melo (aka: Cantaloupe, Rockmelon, Sweet melon, Spanspek, Honeydew melon, Honeymelon, Crenshaw, Casaba)
Citrullus lanatus (aka: Watermelon)
Cirsium arvense (aka: Creeping Thistle, Canada thistle, Field thistle, California thistle, Lettuce from hell thistle, Corn thistle, Cursed thistle, Green thistle, Hard thistle, Perennial thistle, Prickly thistle, Small-flowered thistle, Way thistle, Stinger-needles)
Borago officinalis (aka: Borage, Starflower, Common borage, Cool-tankard, Tailwort)