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Platanthera stricta

A North American orchid native to western North America that grows in wet meadows, tundra, marshes, fens, and related moist habitats, with green, mostly scentless flowers on lax to dense spikes, leaves abruptly diverging from the stem, an erect stem up to about 80 cm tall, and club-shaped inflated spurs blooming June–August.

Is Platanthera stricta growing in your garden? Record it and all of your plants in Known.

Common Names

Slender Bog Orchid, Modoc Bog Orchid

Summary

The slender bog orchid is a perennial herb native to western North America, growing in wetlands, seeps, along streams, and moist meadows at elevations of 1000–2300 m. It forms slender erect stems with basal leaves up to 11 cm long and an inflorescence that is a slender, open spike 20–70 cm long bearing green flowers with a club-shaped spur.

It occurs across a wide western range from Alaska and Yukon down to Utah and northern California, and globally is ranked G5 with regional variation (California 4.2). Flowering occurs in late spring through summer, and flowers are green to yellowish-green; pollination involves a diverse range of insects.

Lifecycle

Perennial

Height

0.5-3.5 feet

Sunlight Requirements

Ideally partial shade.

Soil Type

Moist to wet, non-calcareous soils

Soil Drainage

Moist to wet soils

Bloom Color

Green to yellowish green; sometimes tinged red or purple

Bloom Time

Spring through Fall

Foliage Color

Green

Fall Foliage Color

Green, Purple, Red

Growth Rate

Not specified

Seasons of Interest

Spring, Summer, Fall

Propagation Methods

No data available

Attracts Wildlife

Attracts bees, moths, flies, and mosquitoes

References

Platanthera stricta in Flora of North America @ ef…. efloras.org.
IOSPE PHOTOS. orchidspecies.com.
Slender Bog-orchid - Calscape. calscape.org.
Platanthera stricta - Wikipedia. en.wikipedia.org.
Slender bog orchid - Encyclopedia of Life. eol.org.
Slender Bog Orchid - Montana Field Guide. fieldguide.mt.gov.
Platanthera stricta (Modoc Bog Orchid, Slender Bog…. goorchids.northamericanorchidcenter.org.
Platanthera stricta (Slender Bog Orchid). idfg.idaho.gov.
Platanthera stricta – Flora of Eastern Washington …. inside.ewu.edu.
Platanthera stricta | International Plant Names In…. ipni.org.
E-Flora BC Atlas Page. linnet.geog.ubc.ca.
Platanthera stricta Lindl. GRIN-Global. npgsweb.ars-grin.gov.
USDA Plants Database. plants.sc.egov.usda.gov.
Platanthera stricta Lindl. | Plants of the World O…. powo.science.kew.org.
Platanthera stricta - CNPS Rare Plant Inventory. rareplants.cnps.org.
Platanthera stricta | /RHS. rhs.org.uk.
Platanthera stricta. species.data.kew.org.
Platanthera stricta - Wikispecies. species.wikimedia.org.
Platanthera stricta | slender bog orchid. wildflowersearch.org.
Platanthera stricta - Calflora. calflora.org.
Platanthera stricta | Slender Bog Orchid. pnwflowers.com.
World Flora Online. worldfloraonline.org. June 2024.