![](https://www.tumblr.com/widgets/share/tool?posttype=photo&canonicalUrl=http%3A%2F%2Fzermattflora.cambriaflora.net%2Falbums%2Fall-photos-in-reverse-order-of-date-uploaded%2Fcontent%2Fhieracium-piliferum%2F&content=http%3A%2F%2Fzermattflora.cambriaflora.net%2Fstorage%2Fcache%2Fimages%2F000%2F680%2FHieracium-piliferum-5399ERAW1PSP1%2Flarge.1534795513.jpg&caption=%3Cp%3E%3Cstrong%3E%3Ca href="http%3A%2F%2Fzermattflora.cambriaflora.net%2Falbums%2Fall-photos-in-reverse-order-of-date-uploaded%2Fcontent%2Fhieracium-piliferum%2F" title="Hieracium piliferum (Hairy Hawkweed)"%3EHieracium piliferum (Hairy Hawkweed)%3C/a%3E%3C/strong%3E%3C/p%3E%3Cp%3EThe+presence+of+long+hairs+on+stem+and+relatively+fewer+black+glandular+hairs+on+stem+ought+to+distinguish+this+species+from+H.+glanduliferum+%28though+glandular+hairs+by+no+means+missing%29.%3C/p%3E){kind=link}
Hieracium piliferum (Hairy Hawkweed)
The presence of long hairs on stem and relatively fewer black glandular hairs on stem ought to distinguish this species from H. glanduliferum (though glandular hairs by no means missing).
The Alpine Flora of Zermatt, Switzerland