sarah_oberlin's Journal

https://www.inaturalist.org/observations/identify?iconic_taxa=unknown&project_id=city-nature-challenge-2024-global-project&place_id=1&photos=true&per_page=100
https://www.inaturalist.org/observations/identify?per_page=100&iconic_taxa=unknown&order_by=random&not_in_project=variable-species-and-other-life%2Cmicroscopy&without_taxon_id=67333%2C131236%2C151817%2C48222&photos=true&without_term_id=22&project_id=189155%2C181467%2C195872&place_id=30
P. Indica: https://www.inaturalist.org/observations/identify?per_page=100&ident_taxon_id=243824&d1=2024-04-25&d2=2024-04-29&place_id=97394
Potentilla: https://www.inaturalist.org/observations/identify?per_page=100&place_id=1&taxon_id=53186&d1=2024-04-25&d2=2024-04-29

https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&highlighttaxonid=3150#K39971L3a
https://gobotany.nativeplanttrust.org/dkey/potentilla/#c16
http://www.namethatplant.net/plantdetail.shtml?plant=3255
https://www.inaturalist.org/observations/identify?quality_grade=research&verifiable=true&per_page=100&taxon_id=55732&place_id=1&preferred_place_id=1&photos=true&ident_user_id=alexey_pot

Key Characteristics:
Norwegian cinquefoil produces a basal rosette of trifoliate leaves from a taproot. Lower leaves continue to be trifoliate.
In maturity, it has a green or red stem growing erect up to about 50 cm (20 in) in maximum length and branching in its upper parts. The flowering stalks have long spreading hairs which are stiff, tubercle-based, to 3 mm long.
The leaves are stalked and are either divided into five leaflets, or have three leaflets with the terminal leaflet being divided into three lobes. Each leaflet is up to 5 cm (2 in) long and is widely lance-shaped with toothed edges. The basal leaves have narrow, sharp-tipped stipules while the upper leaves have elliptical stipules which are longer than the leaf stalks.
The inflorescence is a terminal cyme of several flowers. 5 green bracts. Each flower has five rounded yellow petals 3-5mm long inside a calyx of hairy, pointed sepals with reddish tips. Petals are slightly shorter than to subequal in length to the sepals. There are fifteen to twenty stamens, a separate gynoecium and many pistils. The calyx lengthens after flowering and the fruit is a cluster of pale brown achenes, green-brown to brown, striate-ribbed.

Be careful to distinguish it from:
Potentilla recta:
lower leaves with mostly 5 or 7 leaflets and petals usually 7-12 mm long, slightly to evidently Longer petals than the sepals
(vs. P. norvegia, with the lower leaves with 3 leaflets and petals 2-5 mm long, slightly Shorter petals than to as long as the sepals).
Potentilla rivalis:
androecium with mostly 10 stamens bearing anthers 0.2–0.3 mm long, stems villous, and petals 1.3–3 mm long, petals conspicuously Shorter than the sepals
(vs. P. norvegica, with the androecium with 15–20 stamens bearing anthers 0.3–0.5 mm long, stems hirsute, and petals 2–5 mm long, petals slightly Shorter than to subequal in length to the sepals).
Potentilla indica:
Spreads along creeping stolons, rooting and producing crowns at each node. Trifolate leaflets have equivalent petioles for all 3. Crennate/serrate leaf margin.
(vs. P. norvegica with a basal rosette. Center of rosette is producing more leaflets upwards. terminal leaflet has a longer petiole. Deeper leaf margin valleys.)

https://www.inaturalist.org/stats/2024/sarah_oberlin
https://www.inaturalist.org/observations?ident_user_id=sarah_oberlin&not_user_id=sarah_oberlin&place_id=any&subview=map&view=species
https://www.inaturalist.org/comments?mine=true
https://www.inaturalist.org/identifications?user_id=sarah_oberlin&category=maverick

https://forum.inaturalist.org/t/help-me-identify-non-experts-welcome/2915/27
https://forum.inaturalist.org/t/computer-vision-clean-up-archive/7281
https://forum.inaturalist.org/t/ways-to-help-out-on-inat-wiki/1983
https://forum.inaturalist.org/t/easy-way-to-mark-multiple-species-observations/278/179
https://www.inaturalist.org/pages/responses#welcome

https://www.inaturalist.org/projects/2021-jan-feb-id-a-thon/journal/45541-fun-trick-with-search-urls
https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-1-of-2/63
https://forum.inaturalist.org/t/how-to-use-inaturalists-search-urls-wiki-part-2-of-2/18792

https://www.inaturalist.org/observations/identify?ident_taxon_id=243824&place_id=1&per_page=100
https://www.inaturalist.org/observations/identify?per_page=100&place_id=1&taxon_id=53186

https://gobotany.nativeplanttrust.org/dkey/potentilla/#c1,c7
https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&highlighttaxonid=3150#verttarget
http://www.namethatplant.net/plantdetail.shtml?plant=498
Key Characteristics:
Leaves palmately compound, deep green, and 3-foliate. Leaves are more coarsely/roundly toothed (crenate/serrate?) than Fragaria (sharp serrate teeth). The plant spreads along creeping stolons, rooting and producing crowns at each node.
Flowers solitary, on naked, axillary pedicels. Flowers have 5 yellow petals, narrowly obovate to elliptic. Yellow flowers distinguish it from the white or slightly pink flowers of true strawberries.
5 bracts, widened upward with 3(5) teeth, interspersed with 5 calyx lobes, per Vascular Flora of the Carolinas. Bractlets are definitely larger than the sepals.
The unsweet aggregate accessory fruits consist of an expanded white or red fleshy receptacle bearing superficial red achenes and whitish interior flesh.
Not documented: Leaf veins more branching (cross-venulate?) than Fragaria (pinnate). Calyx lobes/sepals fold inward as fruit develops from yellow to red. Paired outer leaflets may become, in dry conditions, deeply grooved so it appears to have 5 leaflets. Dry conditions encourage more distinct & deep serrations of bractlets and leaves. Bractlets may be tipped with red/brown.
Be careful to distinguish from:
Fragaria virginiana:
bractlets of +/- of similar size as the sepals, lacking conspicuous apical teeth, receptacle enlarged in fruit and sweet-tasting petals white to pink (vs. P. indica, with bractlets definitely larger than the sepals, with 3 conspicuous teeth at the apex, receptacle enlarged in fruit but rather dry and insipid tasting, and petals yellow).

In US search string:
https://www.inaturalist.org/observations/identify?per_page=100&order=asc&place_id=1&photos=true&taxon_id=243824
https://www.inaturalist.org/observations/identify?exact_taxon_id=47125&ident_taxon_id=243824&place_id=any
https://www.inaturalist.org/observations/identify?per_page=100&place_id=1&hrank=supertribe&lrank=subtribe&taxon_id=885411
https://www.inaturalist.org/observations/identify?reviewed=any&per_page=100&place_id=1&ident_user_id=sarah_oberlin&hrank=supertribe&lrank=subtribe&taxon_id=885411

Hello! This Potentilla shows multi-toothed bractlets so I believe it is P. indica.
http://www.namethatplant.net/plantdetail.shtml?plant=498 is my ID key if you wish to know more.

Hello, this Potentilla looks like it could be P. indica but I can't say without more information than is visible in the photo(s) unfortunately. For future observations of similar plants, getting photos of the leaves, flower or bud or fruit, and the back of the flower/bud/fruit would help you get it identified!

https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&highlighttaxonid=2665#verttarget

http://floranorthamerica.org/Parthenocissus

https://gobotany.nativeplanttrust.org/species/parthenocissus/inserta/

https://fsus.ncbg.unc.edu/show-key.php?highlighttaxonid=3447
Differential Key

http://www.phytologia.org/uploads/2/3/4/2/23422706/913501-526nesomoxalisintheus.pdf
TAXONOMIC NOTES ON ACAULESCENT OXALIS
(OXALIDACEAE) IN THE UNITED STATES
Guy L. Nesom

From www.naturespot.org.uk
https://gobotany.nativeplanttrust.org/dkey/trifolium/
http://www.namethatplant.net/4DCGI/Query?scientificname=Trifolium
https://fsus.ncbg.unc.edu/main.php?pg=show-key.php&highlighttaxonid=65985#K39894L3a

Trifolium dubium
Low to short, usually hairy with spreading to ascending stems. Trifoliate, leaflets oval to heart shaped, the terminal leaflet short-stalked. Flowers yellow, becoming browner with age, small 2 to 3 mm in small heads with up to 6 flowers.
Standards are ridged like a roof and fold down either side of the pods, unlike Trifolium campestre. Flowers brighter and smaller than Hop Trefoil. When not in fruit, both trefoils are similar to Black Medick in flower, but Black Medick leaves are much more hairy and have an apiculate point (i.e a short fine 'needle' from the end of the leaflet)

Hop Trefoil - Trifolium campestre
Short, hairy, erect plant. Trifoliate, leaflets oval, narrowed towards the base, the central one short stalked. Flowers pale yellow, becoming pale brown eventually, 4 to 5 mm long in small, globose, stalked heads to 15 mm across.
Broad, flat standards that fold downwards over the pods, looking a bit like a hop-flower. Larger and paler than Lesser Hop-trefoil, and turns brownish with age. Both trefoils are similar to Black Medick in flower, but Black Medick leaves are much more hairy and have an apiculate point (i.e a short fine 'needle' from the end of the leaflet)

Slender Trefoil - Trifolium micranthum
It has between 2 and 6 small yellow flowers in each head which helps to distinguish it from Lesser trefoil (T. dubium) which has up to 15.

Black Medick - Medicago lupulina
Low, often prostrate, hairy plant. Leaves are trifoliate and widest above the middle, with a nerve protruding at the broad end of each leaflet in the centre. Flowers yellow, 2 to 3 mm, many to a raceme. Pods coiled, sickle or kidney shaped, 1.5 to 3 mm, black when ripe
If there aren't any fruits, distinguished from the Hop-trefoils by the apiculate leaves - i.e. with a short fine 'needle' at the apex of the leaf. The leaves are also much hairier than the leaves of Hop-trefoils.