Welcome to bplant.org!

bplant.org is a website to help you learn about plants and their ecology and distribution, with an eye towards preserving, protecting, and restoring biodiversity.


Recently Updated Plant Articles

Philadelphia Fleabane

Philadelphia Fleabane (Erigeron philadelphicus)

Updated May 18th, 2024

A common and widely-distributed biennial or short-lived perennial of moist sites, native across North America.

View Full Article


Horseweed (Erigeron canadensis)

Updated May 18th, 2024

Horseweed is an annual plant, native to North America and widely distributed across the continent. It has been introduced to temperate zones in Asia, Europe, and Australia. It is a frequent weed in agricultural lands, especially in no-till agriculture.

View Full Article

a smooth gray branching tree trunk, with pale green, deeply serrated and lobed compound leaves with bright pink stems

Box Elder (Acer negundo)

Updated May 8th, 2024

A maple with compound leaves, native across North America, coast-to-coast, common in riparian areas and near wetlands.

View Full Article

Recently Updated Ecoregion Articles

a river in the foreground, and a flat landscape with mostly evergreen trees, tall snowy mountains in the distance
North America » Northwestern Forested Mountains » Boreal Cordillera »

Copper Plateau

Updated May 7th, 2024

A cold, flat, poorly-drained region in Southcentral Alaska, surrounded by ice-covered mountains.

View Full Article

flat landscape with tree-lined suburbs in the foreground and scattered cropland in the distance, under a blue sky
North America » Great Plains » South Central Semi-Arid Prairies »

Texas Blackland Prairies

Updated April 11th, 2024

A heavily-populated and intensively-farmed region in East-Central Texas, once covered mostly in tallgrass prairie.

View Full Article

Recently Updated ID / Comparison Guides (See All)

collage of Narrow-leaved Spring Beauty and Northern Spring Beauty

Narrow-leaved Spring Beauty (Claytonia virginica) vs. Northern Spring Beauty (Claytonia caroliniana)

Updated April 7th, 2024

These two native spring ephemerals are visually similar and easily confused where their ranges overlap. They are easily told apart by leaf shape, and there are some other subtle differences which are less reliable for identification. C. virginica ranges much farther south and west, and ranges farther into sunnier and more upland habitats, whereas C. caroliniana ranges farther north, to higher elevations in the Southern Appalachians, and prefers shadier habitats.

View Full Guide

collage of Prairie Fleabane and Annual Fleabane

Prairie Fleabane (Erigeron strigosus) vs. Annual Fleabane (Erigeron annuus)

Updated March 14th, 2024

These closely-related species are visually similar and can occur together in the same habitats, tend to bloom around the same time, and their flowers are nearly indistinguishable. E. annuus favors moister, more disturbed habitats with richer soil, and tolerates more shade, whereas E. strigosus ranges farther west and south, prefers drier, sunnier, slightly less disturbed habitats, and is more tolerant of alkaline soil.

View Full Guide

collage of Atlantic White Cedar and Northern White-Cedar

Atlantic White Cedar (Chamaecyparis thyoides) vs. Northern White-Cedar (Thuja occidentalis)

Updated February 20th, 2024

These two species only overlap in the wild in a small part of New England, but both are widely planted in landscaping. Both have scale-like foliage and seed cones releasing wind-dispersed seeds. They can be told apart by their foliage arrangement, density, and color, seed cones, and shape. Some trees can be distinguished by bark. Both prefer moist conditions, but Atlantic white cedar is more restricted to wetlands. The two species have no overlap in soil pH, with Atlantic white cedar limited to sites with acidic soils (pH <5.5), whereas Northern White Cedar is most likely on more calcium-rich soils (pH > 5.5.)

View Full Guide

Want to get involved? Sign up for our interest list!