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Large False Solomon's Seal
Maianthemum racemosum
About Large False Solomon's Seal (Maianthemum racemosum) Nurseries Show All Photos Maianthemum racemosum (Treacleberry, False Solomon's Seal, Solomon's plume or False Spikenard; syn. Smilacina racemosa) is a species of flowering plant in the family Ruscaceae, native to North America. It is a woodland herbaceous perennial plant growing to 50-90 centimeter tall, with alternate, oblong-lance-shaped leaves 7-15 centimeter long and 3-6 centimeter broad. The flowers are produced on a 10-15 centimeter panicle, each flower with six white petals 3-6 millimeter long blooming in late spring. The plants produce green fruits that are round and turn red in late summer.
Plant Description
Plant Type
Perennial herb

Max. Height
1.6 - 3 ft (0.49 - 0.9 m)

Flower Color

Flowering Season
Spring, Summer

Native Status

Natural Setting
Site Type

part Shade

Elevation ?
3' - 10070'

Annual Precip. ?
12.8" - 154.5"

Summer Precip. ?
0.17" - 6.04"

Coldest Month ?
24.8° F - 50.9° F

Hottest Month ?
46.8° F - 75.6° F

Humidity ?
0.02 vpd - 24.44 vpd

Sunset Zones ?
1, 2, 4*, 5, 6, 7*, 8, 9, 14*, 15*, 16*, 17, 18, 19, 20, 21, 22, 23, 24

Landscaping Information
Ease of Care
moderately easy

Water Requirement ?
Extremely Low
Very Low
Moderate - High

Propagation ?
For propagating by seed: 6 mos. cold, 3 mos. warm, then 5 mos. cold stratification; 3, 2, and 3-5 mos. respectively may also give good germination. Use fresh seeds

Other Names
Botanical Names
Smilacina racemosa,Maianthemum racemosum ssp. amplexicaule

Common Names
Feathery False Lily Of The Valley

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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