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Emory's Rockdaisy
Perityle emoryi
  
About Emory's Rockdaisy (Perityle emoryi) 1 Nurseries Carry This Plant Perityle emoryi is a species of flowering plant in the Asteraceae (Sunflower) family known by the common name Emory's Rockdaisy. It is native to the southwestern United States and northern Mexico, where it is a common wildflower of the deserts and can also be found in coastal regions. It grows in many types of habitat, it tolerates disturbance, and it can become somewhat weedy. The plant is also known from Chile and Peru and it is an introduced species in parts of Hawaii. Its distribution is apparently expanding. This polyploid plant is quite variable genetically and in appearance. It is an annual herb growing 2 to 60 centimeters tall, its stem small, delicate, and simple, or thick, branching, and sprawling. It is usually hairy in texture. The alternately arranged leaves have blades of various shapes which are toothed or divided into lobes and borne on petioles. The flower head is a typical composite "flower", hemispherical to bell-shaped and generally no more than a centimeter wide. The head has a center of many golden disc florets and a fringe of 8 to 12 white ray florets each just a few millimeters long. The fruit is an achene, usually with a pappus at the tip.
Plant Description
Plant Type
Plant Type
Annual herb

Size
Size
0.07 - 2 ft tall

Fragrance
Fragrance
Fragrant - Unpleasant

Flower Color
Flower Color
White, Yellow

Flowering Season
Flowering Season
Winter, Spring

Landscaping Information
Sun
Sun
Full Sun

Moisture
Moisture
Low

Summer Irrigation
Summer Irrigation
Max 2x / month once established

Nurseries
Nurseries

Cold Tolerance
Cold Tolerance
Tolerates cold to 15° F

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
Sandy and rocky

Companion Plants
Companion Plants
Most effective with other Desert plants such as Desert Agave (Agave deserti), Barrel Cactus (Ferocactus cylindraceus), Arizona Chalk Dudleya (Dudleya arizonica), Brittle Bush (Encelia farinosa), Fish Hook Cactus (Mammillaria dioica), Chia (Salvia columbariae), and Mojave Yucca (Yucca shidigera)

Propagation
Propagation?
By seed

Natural Setting
Site Type
Site Type
Desert canyons, plains, slopes, and washes, especially among larger rocks

Climate
Climate
Annual Precipitation: 2.0" - 22.4", Summer Precipitation: 0.15" - 2.88", Coldest Month: 42.2" - 63.2", Hottest Month: 61.3" - 91.0", Humidity: 1.41" - 49.17", Elevation: -280" - 5112"

Alternative Names
Common Names: Emory Rockdaisy, Emory's Rocklily


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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