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Concrete Botany

@concretebotany.bsky.social

Urban and Disadvantaged Botany. All photos by myself unless otherwise noted. Based in South Philadelphia. Tell me how to post = block. Only here for the plants, nothing else. Bloomscrolling > Doomscrolling

854 Followers  |  60 Following  |  4,476 Posts  |  Joined: 06.12.2024
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Posts by Concrete Botany (@concretebotany.bsky.social)

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Spotted #Knapweed (Centaurea stoebe) shot on August 5th of last year.
#Bloomscrolling #Wildflowers #SpottedKnapweed

04.03.2026 01:04 β€” πŸ‘ 14    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
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A pavement poppy.

14.06.2025 16:39 β€” πŸ‘ 129    πŸ” 13    πŸ’¬ 2    πŸ“Œ 0

Garden Cosmos

03.03.2026 22:27 β€” πŸ‘ 17    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Prairie Fleabane (Erigeron strigosus) with White Clover & an unidentified grass, growing out of a crack in the sidewalk about where Columbus Boulevard turns into Pattison Avenue, shot last August 5th.
#Bloomscrolling #Wildflowers

03.03.2026 21:45 β€” πŸ‘ 15    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Common Eveningprimrose (Oenothera biennis) shot off Columbus Boulevard last August 5th.
#Wildflowers

03.03.2026 20:26 β€” πŸ‘ 16    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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#Camphorweed (Heterotheca subaxillaris) shot in the Food Distribution District last August 5th.
#Wildflowers #UrbanWildflowers

03.03.2026 19:14 β€” πŸ‘ 13    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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A much stressed Common Blue Violet (Viola sororia) shot last August 5th in East Oregon.

03.03.2026 18:31 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
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Paper Mulberry (Broussonetia papyrifera) shot on August 5th of last year.
#Weeds #WeedTrees #UrbanTrees #DestructiveTrees

03.03.2026 17:24 β€” πŸ‘ 12    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Bright orange California poppies growing between the sidewalk and building foundation

Bright orange California poppies growing between the sidewalk and building foundation

These California poppies, 😍

08.06.2025 15:45 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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I had thought that these were Acalypha virginica, but I now realize on inspection that these are Rhomboid Mercury (Acalypha rhomboidia). I have deleted a few previous posts of this population as tiny, undeveloped plants. These were shot on August 5th of last year.
#UrbanBotany #UrbanWeeds #Weeds

03.03.2026 15:21 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A trio of flowers with variegated pink/white petals growing along the sidewalk. Several flower buds are also visible amongst the green foliage

A trio of flowers with variegated pink/white petals growing along the sidewalk. Several flower buds are also visible amongst the green foliage

Spotted growing out of cracks in the sidewalk along Main St. Google says it is Field Bindweed, but I just see pretty flowers β˜ΊοΈπŸ’š #flowerreport #pink #bloomscroll #willits #pnw #northerncalifornia

05.06.2025 01:34 β€” πŸ‘ 16    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Musk #Thistle (Carduus nutans) grown out of the sidewalk of Columbus Boulevard, shot on May 16, 2024.
#Bloomscrolling #Wildflowers #Flowers

03.03.2026 00:18 β€” πŸ‘ 25    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
A pink snapdragon growing between concrete sidewalk slabs. Picture taken outside Terryberry Library

A pink snapdragon growing between concrete sidewalk slabs. Picture taken outside Terryberry Library

She's doing her best

17.07.2025 21:56 β€” πŸ‘ 14    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
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Tufted Knotweed (Persicaria cespitosa) growing in a Whitman street gutter, shot on June 5th of last year.
#Wildflowers #StreetFlowers #UrbanWildflowers

02.03.2026 21:31 β€” πŸ‘ 18    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Photo of a light grey lichen comprised of numerous octopus-looking branches covered in dark grey discs (the apothecia).

Photo of a light grey lichen comprised of numerous octopus-looking branches covered in dark grey discs (the apothecia).

A Physcia sp lichen on a poplar tree.
NWT, Canada. photo covers about 6cm, left to right. #lichen #fungi #fungifriends

01.03.2026 03:40 β€” πŸ‘ 704    πŸ” 66    πŸ’¬ 10    πŸ“Œ 4
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Prairie Fleabane (Erigeron strigosus) shot last June 5th at the bottom of Whitman.
#Bloomscrolling #Wildflowers #UrbanWildflowers

02.03.2026 19:32 β€” πŸ‘ 11    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Pansy growing out of a crack in concrete.

Pansy growing out of a crack in concrete.

Beautiful things grow in difficult places.

28.01.2025 00:33 β€” πŸ‘ 2    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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Common #Purslane (Portulaca oleracea) shot last September 17th.

02.03.2026 17:38 β€” πŸ‘ 24    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0

Ivy Leaved Toadflax (Cymbalaria muralis)

02.03.2026 17:09 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Low Mallow (Malva neglecta) shot last April 27th.
#Bloomscrolling #Wildflowers

02.03.2026 16:17 β€” πŸ‘ 23    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
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A little viola seed randomly found its way into the crack between pavement and landscaping timber, turning into a delightful flower.

10.02.2026 19:34 β€” πŸ‘ 8    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Rustyback Fern Asplenium ceterach on a 19th century brick wall. It has pinnately-divided, tongue-shaped leaves growing as a tuft.

Rustyback Fern Asplenium ceterach on a 19th century brick wall. It has pinnately-divided, tongue-shaped leaves growing as a tuft.

Rustyback Fern growing next to Wall-rue Fern on a brick wall.

Rustyback Fern growing next to Wall-rue Fern on a brick wall.

Out recording Spring flower activity today at Bungay (Suffolk) @wildflowersociety.bsky.social. Agreeable company with impressive skill-set. My top find was Rustyback Fern (Asplenium ceterach) - not much of a flower but a first for me.

01.03.2026 16:53 β€” πŸ‘ 37    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0
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Morning Glory shot last October 21st
#Bloomscrolling #Flowers #MorningGlory

02.03.2026 14:11 β€” πŸ‘ 20    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Photo of a bright orange lichen growing flat on grey rock. The sort of round lichen is comprised of numerous branches radiating out from the centre.

Photo of a bright orange lichen growing flat on grey rock. The sort of round lichen is comprised of numerous branches radiating out from the centre.

Elegant Orange Sunburst Lichen, Rusavskia elegans. NWT, Canada.
#lichen #fungi #fungifriends

23.02.2026 03:09 β€” πŸ‘ 308    πŸ” 22    πŸ’¬ 1    πŸ“Œ 3
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Philadelphia #Fleabane (Erigeron philadelphicus) shot on June 13th of last year.
#Bloomscrolling #Flowers #Wildflowers

01.03.2026 23:04 β€” πŸ‘ 25    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Yellow poppies growing from a crack in the sidewalk

Yellow poppies growing from a crack in the sidewalk

On the hedge of the sidewalk in Brest, France. #SundayYellow #Gardening 🌱

03.08.2025 07:18 β€” πŸ‘ 13    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

And fully back in this shot. The species varies from bright green to a purple-red, mostly depending on stress. Individuals of the species growing in cracks tend to be very stressed and are often more red than those in good dirt.

bsky.app/profile/conc...

01.03.2026 22:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Woodsorrel doesn't have (true) clover shaped leaves. It has heart-shaped leaves, which that does, but they are somewhat folded back. You can see them partially back in this shot.
bsky.app/profile/conc...

01.03.2026 22:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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#Camphorweed (Heterotheca subaxillaris) shot on July 14th of last year.
#Bloomscrolling #Flowers #Wildflowers

01.03.2026 21:39 β€” πŸ‘ 24    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Creeping Woodsorrel, I believe.

01.03.2026 20:34 β€” πŸ‘ 13    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0