Valeriana pyrenaica

{{Short description|Species of plant}}{{Use dmy dates|date=March 2024}}

{{Speciesbox

| image = Valeriana pyrenaica flowers, Annick Water, Lainshaw, Stewarton, East Ayrshire.jpg

| image_caption = Flowers

| image2 = Valeriana pyrenaica - La flore et la pomone francaises - T3 - p 211 - clean.jpg

| image2_caption = Botanical illustration

| genus = Valeriana

| species = pyrenaica

| authority = L.

}}

Valeriana pyrenaica, the capon's tail grass or Pyrenean valerian, is a species of flowering plant in the family Caprifoliaceae.{{cite web |url=https://www.rhs.org.uk/plants/18741/wd/details18741 |title=Valeriana pyrenaica capon's tail grass |author= |date=2024 |website=Find a plant |publisher=The Royal Horticultural Society |access-date=24 March 2024 |quote=Other common names; Pyrenean valerian ... 19 suppliers }} It is native to Spain and France, and is a garden escapee in Ireland and Great Britain.{{cite POWO |id=860103-1 |title=Valeriana pyrenaica L. |access-date=24 March 2024 }} A perennial herbaceous plant reaching {{cvt|1.2|m|ft|0}}, it grows in the Pyrenees and Cantabrian Mountains, typically near water.

{{Gallery

|Valeriana pyrenaica 07.jpg|Extreme close-up of flowering structures

|Pyrenean Valerian (Valeriana pyrenaica) - geograph.org.uk - 1395531.jpg|On the Scottish side of the Liddel Water

|Valeriana pyrenaica 001.JPG|At the Jardin botanique alpin du Lautaret

|Valeriana pyrenaica in Pyrenees NP (3).jpg|In the wild in the Pyrenees

}}