The Delicate Arch Viewpoint Road is closed. All other roads and trails remain open, but many trails are snowy, icy, and dangerous. Please inquire at the visitor center for the most up-to-date conditions.
Construction Update - 11/25/2013
Construction work continues at the Devils Garden parking lot, limiting parking and causing occasional delays. Visitors can avoid the area by turning around at Sand Dune Arch. More »
Family: Brassicaceae (A Utah Flora - Cruciferae) - Mustard Family
Annual herbs; often with pungent watery juice or peppery sap; stems 1.2” to 1.3' (3 to 40 centimeters) tall
Leaves: basal and alternate; simple; hairy; toothed along margin; 0.48” to 3.6” (1.2 to 9 cm) long; 0.12” to 0.92” (0.3 to 2.3 cm) wide
Flowers: 4 pink to lavender petals in the shape of a cross or crucifer; 4 sepals (pink, purple or reddish); usually 6 stamens (with 2 outer shorter than the inner 4), sometimes 2 or 4; 1 pistil; nectar glands commonly 4; flowers 0.25” to 0.38” (6.2 to 9.5 mm) wide; flowers in a raceme
Pollinators: other genera in this family are pollinated by insects (specifically butterflies, moths, bees, flies); some self-fertile
Fruits: silique (many-seeded capsule) - a pod with 2 compartments with a thin partition
Blooms in Arches National Park: March, April, May, June
Habitat in Arches National Park: roadsides, foothills, and disturbed areas
Location seen: widespread, Arches National Park Visitor Center area, Courthouse Towers, Windows, outside Arches National Park in Mill Creek
Other: The genus name, “Malcolmia”, honors William Malcolm (1778-1805), a British horticulturalist, and the species name, “africana”, is named for this non-native weed's home continent of Africa.
Many plants in this family are weeds and they flower early because they are annual. Many vegetables are in this family– radish, cabbage, cauliflower. A few species of plants in this family are poisonous to livestock.
Did You Know?
Naturally occurring sandstone basins called “potholes” collect rain water and wind-blown sediment, forming tiny ecosystems where a fascinating collection of plants and animals live. Tadpole shrimp, fairy shrimp and many insects can be found in potholes. More...