Romanzoffia thompsonii Marttala

Oregon: Lane County: [locality and coordinates withheld; status in Oregon: S3 (Rare; OBIC)],
Open, W-facing rocky cliff and in the red cinder, rocky soil in adjacent roadside ditch, seasonally wet with seepage and small waterfalls; flat areas, vertical slopes and cliff underhangs, slope 0-ca 150+ deg, limited to areas of heavy moisture. Associates seen 4-16-84 with 3460 (or in photos): grasses, mosses, algae, liverworts, Montia parvifolia, M. fontana, Romanzoffia californica (3442), Saxifraga cf. marshallii, Crocidium multicaule, Mimulus guttatus, M. alsinoides, Gilia capitata, Polypodium glycyrrhiza, Lomatium marindalei, Achillea millefolium, Rubus ursinus, Cerastium cf. vulgatum, Valeriana sp. (veg.), Plectritis sp., Brodiaea sp.. Additional associates seen: 6-16-91 with 3460c: Galium sp. (imm. G. aparine?), Saxifraga cf. integrifolia, Trifolium oliganthum (cf. 4464) Collinsia grandiflora (4260); 5-29-93 with 3460d: cf. Cryptantha intermedia v. grandiflora (4463), Marah oreganus, Rubus leucodermis, Phacelia heterophylla, Lotus purshiana, Linanthus bicolor. Following seen nearby possibly not associated: 5-28-84 with 3460a: Adiantum pedatus, Delphinium menziesii; 6-16-91 with 3460c: Polystichum munitum, Potentilla glandulosa, Rubus parviflorus, Sedum spathulifolium, Acer macrophyllum; 5-29-93 with 3460d: Collomia heterophylla; also nearby 5-29-93 (removed from 4463 & 4464; see above): Cardamine oligosperma, Polygonum sp., Cerastium viscosum, Stellaria umbellata. The young plants often growing with "their feet" in the water and wet, algae-covered rock and moss, the distribution apparently inverse to that of Crocidium multicaule, which although common on this cliff system is much commoner in the vernally less wet areas. Plants singly or in +/- loosely aggregated colonies; PHOTOS of 3460c and garden 3460a show 5 weak (more yellow than gold) spots in upper throat alternating with and overlapping the lobe bases. Another population (3441) occurs ca 0.1 mi N of here and in good years there is a smaller one between them. PHOTOS. Includes material in packets from VM's garden through 6-25-89 (wild collected & self-seeded. Phenology: Flowers. Paratype: Romanzoffia thompsonii Marttala.

Vernon Marttala 3460a, May 28, 1984
ID, Accession: 119971, Barcode: ID112877