Eriogonum reniforme Torr. & Frém.
Kidney-leaf buckwheat
Kidney-leaf buckwheat is native to the southwestern United States.
Plants: 1¾–16″ (5–40 cm) high. While desert trumpet has inflated stems, kidney-leaf buckwheat does not.
Leaves: Leaves are basal. They are round-, spade-, or kidney-shaped.
Flowers: Rounded cymes 1¾–14″ (5–35 cm) around are comprised of very small yellow flowers, 1/32–1/16″ (1.5–2.5 mm), that turn reddish as they age. Flowers appear from February to August.
Fruits: Achenes brown, lens-shaped, and ~1/32″ (0.8–1 mm) long.
Habitats: Creosote bush scrub, Joshua tree woodland, at elevations below 5000′ (1.5 km).
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Desert trumpet vs. kidney-leaf buckwheat. |
Online References:
Eriogonum reniforme Torr. & Frém. var. comosum M.E. Jones
2/28/2010 · Anza-Borrego Desert State Park, California 
6/4/2009 · Lake Mead Area, Nevada · ≈ 2 × 1½′ (64 × 42 cm) 
| Kingdom | Plantae | Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin) |
| Subkingdom | Tracheobionta | Vascular plants—plants with a “circulatory system” for delivering water and nutrients |
| Division | Magnoliophyta | Flowering plants, also known as angiosperms |
| Class | Magnoliopsida | Dicotyledons—plants with two initial seed leaves |
| Subclass | Caryophyllidae | Cacti, many other succulents, carnivorous plants, and leadworts |
| Order | Caryophyllales | Includes cacti, carnations, amaranths, ice plants, and many carnivorous plants |
| Family | Polygonaceae | Knotweed or smartweed family |
| Genus | Eriogonum | From Greek erion, “wool,” and gonu, “joint or knee,” for the hairy or woolly joints in the stems of some of these species |
| Species | reniforme | Kidney-shaped, alluding to the leaves |
Eriogonum reniforme description by Thomas H. Kent, not updated.
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