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Malacothamnus densiflorus
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Yellow Stem Bush Mallow
( Malacothamnus densiflorus )
Malacothamnus densiflorus
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
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About Yellow Stem Bush Mallow (Malacothamnus densiflorus)
5 Nurseries Carry This Plant
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Malacothamnus densiflorus
is a species of flowering plant in the mallow family known by the common name yellowstem bushmallow. It is native to the Peninsular Ranges of southern California and northern Baja California, where it is a member of the chaparral plant community. This is a shrub with a slender, multibranched stem approaching two meters in maximum height. It is coated in thin to dense yellowish or tan hairs. The thick to leathery leaves are oval in shape, a few centimeters long, and sometimes divided into lobes. The flower cluster is a spikelike cluster of many pale pink flowers with oval or somewhat triangular petals each up to a centimeter long. Flowers appears in abundance in the spring and early summer.
The plant is tough and easy to grow, and extremely drought tolerant. It can handle most soil types as long as they are well draining. In nature it seems to grow best on dry gentle slopes. Avoid summer significant amounts of direct summer water, though it can tolerate a light sprinkling once a month. Does well in full sun or part shade.
Plant Description
Plant Type
Shrub
Size
3 - 7 ft tall
3 - 7 ft wide
Form
Mounding, Rounded, Spreading
Growth Rate
Fast
Dormancy
Evergreen, Summer Semi-Deciduous
Fragrance
Slight
Flower Color
Pink
Flowering Season
Spring, Summer
Wildlife Supported
Butterflies, bees, many bird species, deer
Butterflies & moths hosted ( 5
likely
* )
SHOW ALL
*
Northern White-Skipper
Heliopetes ericetorum
Heliopetes ericetorum
*
West Coast Lady
Vanessa annabella
Vanessa annabella
*
White-lined Sphinx
Hyles lineata
Hyles lineata
*
Bucculatrix quadrigemina
Bucculatrix quadrigemina
*
Chionodes popa
Chionodes popa
Landscaping Information
Sun
Full Sun
Moisture
Very Low, Low
Summer Irrigation
Max 1x / month once established
Nurseries
Carried by 5
Cold Tolerance
Tolerates cold to 10 - 20° F
Soil Drainage
Fast, Medium
Soil Description
Well draining. Soil PH: 6 - 8
Common uses
Hedges, Hummingbird Gardens, Bird Gardens, Butterfly Gardens
Companion Plants
White Sage
(
Salvia apiana
),
Black Sage
(
Salvia mellifera
), (
Bush Sunflower
(
Encelia californica
),
California Buckwheat
(
Eriogonum fasciculatum
)
Maintenance
Deer love this plant
Natural Setting
Site Type
Gentle slopes
Climate
Annual Precipitation: 9.5" - 39.8", Summer Precipitation: 0.19" - 2.83", Coldest Month: 33.6" - 54.7", Hottest Month: 62.5" - 80.8", Humidity: 1.13" - 29.91", Elevation: 26" - 6782"
Alternative Names
Botanical Names
: Malacothamnus densiflorus var. densiflorus,Malacothamnus densiflorus var. viscidus
Common Names
: Many-flowered Bush Mallow, Yellowstem Bushmallow
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Yellow Stem Bush Mallow
Malacothamnus densiflorus
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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