Bill's Botanical Forays

This is a working draft list of locations where cactus has been found in Maryland, excluding the Eastern Shore. (Eastern Shore sites may be added later.) If you know of a location not listed here, let me know at botanybill (at) verizon.net and I will put it on the list. Also if you would like to claim a site to watch, let me know.

 

 

 

Alleghany County

• Cumberland – near exit 43 on I-68.
• Flintstone – (at least three stations) – Opuntia humifusa s.s.

Anne Arundel County

• Arundel High School and Arundel Middle School – possibly mowed over – 
• Global Command Antenna Field, Davidsonville – Jo Mercer
• Hancock’s Resolution – Field north of house – Not found – Extirpated
• Hancock’s Resolution – Planted in garden – Opuntia cespitosa – Chris WInton and Matt Grey
• Jug Bay, Parking Lot Meadow – Bill Harms
• Jug Bay, Sand Barrens, Parris Glendenning Area (Wayson’s Corner?) – Bill Harms (More info)
• Jug Bay, South Farm
• Milt’s Sand Pit, Sands Road –  large population – old field – Opuntia humifusa –  Bill Harms – (More info)
• Patuxent Research Refuge, Lake Allen – large population – Opuntia cespitosa with some putative introgression with Opuntia humifusa – Bill Harms (More info)
• Patuxent Research Refuge, East of Tipton Field – likely planted many years ago – >Opuntia cespitosa – with some putative introgression with Opuntia humifusa – Bill Harms
• Sandy Point State Park – Extirpated?
• Weinberg Park – Opuntia humifusa s.s. – probably planted
• Wooton’s Landing – assumed to be planted in two stations. Not found June 2019 – Possibly removed.

Baltimore County

• Cromwell Valley Park
• Factory Road – planted possibly from nearby wild stock – Opuntia cespitosa. (More info)
• Phoenix area – collected in 1986

Calvert County

• Broome Island
• Flag Ponds

Carroll County

Charles County

• Chapman State Park

Frederick County

• East of Emmitsburg

Howard County

• Main Street, Elkridge – Planted next to a parking lot – Opuntia humifusa s.s. (more info)

Montgomery County

• Bear Island
• Southern end of the Billy Goat A Trail in C&O Canal NHP
• Plummer’s Island – Extirpated
• River Road, SSW of Poolesville – Confirmed as Opuntia humifusa – Robert Ferraro

Prince George’s County

• Billingsley House
• MacGruder’s Landing
• Nottingham Road – apparently planted – tentatively Opuntia mesacantha ssp. mesacantha
• Priest Bridge
• Queen Anne Canoe Launch – open meadow – apparently Opuntia humifusa s.s.
• Rte 301 – small number of plants – planted

St. Marys

• Commander’s residence USN Solomon’s Recreation Area in Lawn
• Patuxent Naval Air Station, East side of Security Road at NE corner air station.
• Piney Point

Washington County

• Kemps Mill – None found on a re-visit to area with Joe Metzger in 2018. Possibly extirpated.