Single Record

Comments: NEED IN SITU PHOTOS. There are three vouchers identified as roundtip twinpod from Mineral Co. The one by East Willow Creek above Creede (2004) has no photograph in SEINet, and so needs review. Of the two collected near Cottonwood Grove in 1981, one is definitely not P. vitulifera but instead is P. acutifolia. The other, judging from the fruit, could be P. vitulifera. Ackerfield does not accept these records as Physaria vitulifera, but BONAP does. Note that iNaturalist shows a recent record, verified as Physaria vitulifera, from the foothills of the Cristos directly east of Villa Grove (July 2025, observation #297169479), but this specimen is actually P. acutifolia. P. vitulifera is a Colorado endemic, with most records from the Front Range. In fact, William Jennings says that all occurrences of P. vitulifera are from the Colorado Front Range (where vouchers of P. acutifolia are often misidentified as P. vitulifera). Jennings reviewed herbarium specimens from Wyoming labeled "Physaria vitulifera" and found all were P. acutifolia (Jennings, 2004). The two putative Mineral Co occurrences would be the only Watershed locations and the only ones in the entire Rio Grande drainage.