Ranunculus: a donor tells me ...

[Alan_b]

This must be either Ranunculus bullatus (5339) or 'ranunculus sp. narrow-leaved ‡' (3636) from the 13/14 seed exchange.  The latter has an accompanying note.

A donor tells me that the narrow-leaved buttercup, the ‘Ranunculus sp.’, is a very pleasing plant in late spring, but who knows what it does for the rest of the year!

My labels got mixed-up so I cannot be sure which of the two possibilities it is.  Bullatus is autumn-flowering so in flowering now my seedling are either too early or too late.  The initial leaves were roundish and could not possibly be described as narrow but perhaps that will develop as the plant matures?  The initial root system is not directly below the rosette which now seems to be putting down new roots.  So I wonder if it is going to turn into a bulbous buttercup and it is just beginning to form the bulb/corm?

If anyone can work out what this is I would be very interested to know. 

[Gerdk]

This is definitely not Ranunculus bullatus which has no branched flowering stems!

Gerd

[Alan_b]

Thanks, Gerd; I thought bullatus was a bit of a long shot.  Since even the seed donor did not know what species the other Ranunculus was, I guess identification is down to me.

[Darren]

Alan - see the thread here regarding 'R. bullatus' from a seed exchange:

http://www.srgc.net/forum/index.php?topic=5818.msg211747#msg211747

[Alan_b]

Thanks, Darren.  Mine does look very like your photo from May 23, 2011 and 'squinny' seems to be an apt description for the flowers.  Do you have any idea what it was really?

Edit:  Oh, Ranunculus muricatus possibly; I should have read the thread more carefully. 

[Alan_b]

These seedlings grew into something looking very like the picture here http://davesgarden.com/guides/pf/showimage/136131/ with the characteristic spiny fruit of the Spinyfruit Buttercup Ranunculus muricatus.  Apart from the fact that my garden cannot offer the wet conditions this plant wants, the flowers are too small to make it garden-worthy.  So they went in the bin yesterday.   

[hadacekf]

 I grow this Ranunculus  a long time. If anyone can work out what this is I would be very happy.

[Maggi Young]

I grow this Ranunculus  a long time. If anyone can work out what this is I would be very happy.

I got the photo posted on Twitter and Maxine ( *dingdong* ) posted that  she had this answer from the Plant Idents group on Facebook, Arctic Buttercup -  Ranunculus gelidus

From  Kew :
Ranunculus gelidus Karelin & Kirilov, Bull. Soc. Imp. Naturalistes Moscou. 15: 133. 1842. 
 syn. Ranunculus glacialis Linnaeus var. gelidus (Karelin & Kirilov) Finet & Gagnepain.


A couple of links to info /photos
Ranunuculus gelidus
Synonyms: Ranunculus gelidus ssp. grayi, Ranunculus grayi, Ranunculus verecundus
http://science.halleyhosting.com/nature/denali/flora/5/butter/ranunculus/verecundus.htm

Ranunculus gelidus Kar. & Kir.
http://www.planetefleurs.fr/Systematique/Renonculaceae/Ranunculus_gelidus.htm    R. gelidus est une plante couchée qui pousse dans le lit des torrents. fleurs solitaires de 1,5 à 2cm de diamètre.


http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200008086 saye :
 Ranunculus glacialis Linnaeus var. gelidus (Karelin & Kirilov) Finet & Gagnepain.

Herbs perennial. Roots fibrous, subequally thick. Stems 5--14 cm, sparsely puberulent or subglabrous, branched. Basal leaves 3--5; petiole 1.5--9 cm, subglabrous; blade 3-sect, cordate-orbicular or cordate-pentagonal, 0.6--1.6 × 0.8--2.6 cm, papery, sparsely puberulent or subglabrous, base subcordate, central segment stalked, broadly rhombic, 3-partite, lobes incised-lobed; lateral segments subsessile, obliquely flabellate, unequally 2-partite; lobes 2 × dissected, ultimate lobules narrowly ovate or narrowly oblong. Stem leaves similar to basal ones, short petiolate or subsessile. Flowers solitary, terminal, 1.5--2 cm in diam. Receptacle puberulent. Sepals 5, broadly elliptic, ca. 5 mm, abaxially appressed white sericeous. Petals 5, broadly obovate, 8--10 × 6--10 mm, nectary pit without a scale, apex truncate-rounded. Stamens numerous; anthers narrowly oblong. Aggregate fruit globose, ca. 6 mm in diam. Achene slightly bilaterally compressed, obliquely obovoid, ca. 2 × 2 mm, puberulent; style persistent, ca. 0.7 mm. Fl. Jun--Sep.

Meadows, grassy places in valley; 2300--2800 m. NW Xinjiang [Kazakhstan].


http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200008086
Ranunculus gelidus subsp. grayi (Britton) Hultén; R. grayi Britton; R. verecundus B. L. Robinson ex Piper

Stems erect or decumbent from short caudices, 3-22 cm, glabrous, each with 1-5 flowers. Roots slender, 0.5-1 mm thick. Basal leaves persistent, blades cordate or reniform, 3-parted, 0.5-1.8 × 0.8-3 cm, segments again lobed, base truncate or nearly cordate, apices of segments rounded. Flowers: pedicels pubescent or glabrous; receptacle glabrous or pubescent; sepals 3-5 × 1-4 mm, pubescent or glabrous; petals 5, 3-6 × 1-5 mm; nectary scale glabrous. Heads of achenes cylindric to ovoid-cylindric, 4-13 × 4-6 mm; achenes 1.2-2.4 × 0.8-2 mm, glabrous; beak subulate, curved or hooked, 0.4-0.8 mm. 2 n = 16.

Flowering late spring-summer (Jun-Aug). Open arctic and alpine slopes; 0-4000 m; Alta., B.C., N.W.T., Yukon; Alaska, Colo., Idaho, Mont., Oreg., Utah, Wash., Wyo.; Asia.

[hadacekf]

Thank you for your help Maggi. I will check the details in the spring.

[reifuan]

This must be either Ranunculus bullatus (5339) or 'ranunculus sp. narrow-leaved ‡' (3636) from the 13/14 seed exchange.  The latter has an accompanying note.

If anyone can work out what this is I would be very interested to know.

It might be Ranunculus parviflorus

[hadacekf]

reifuan,
Thanks for your help, but it is not Ranunculus parviflorus.

[Maggi Young]

reifuan,
Thanks for your help, but it is not Ranunculus parviflorus.

 reifuan was meaning the ranunculus Alan first asked about :  http://www.srgc.net/forum/index.php?topic=12015.msg308378#msg308378 not your plant, Franz.

[hadacekf]

Sorry - Senior moment !