▁meter ▁( 2 0 ") ▁tall , ▁its ▁sl ender ▁stem ▁co ated ▁with ▁hair s , ▁large ▁st alk ed ▁res in ▁g lands , ▁and ▁sometimes ▁br ist les . ▁The ▁rough - ha ired ▁leaves ▁are ▁ 1 ▁to ▁ 4 ▁cent im eters ▁( 0 . 4 ▁to ▁ 1 . 6 ") ▁long . ▁ ▁The ▁infl ores c ence ▁is ▁an ▁array ▁of ▁cluster ed ▁flower ▁heads ▁on ▁thin , ▁st iff ▁ped un cles . ▁Each ▁head ▁has ▁an ▁invol u cre ▁of ▁ph yll aries ▁sh aped ▁like ▁a ▁top . ▁The ▁ph yll aries ▁are ▁co ated ▁in ▁kn ob by ▁yellow ▁res in ▁g lands . ▁At ▁the ▁tip ▁of ▁the ▁infl ores c ence ▁are ▁minute ▁yellow ish ▁ray ▁flor ets ▁each ▁under ▁a ▁millimeter ▁long , ▁and ▁one ▁or ▁two ▁yellow ▁disc ▁flor ets . ▁The ▁fruit ▁is ▁an ▁ach ene ▁with ▁no ▁p app us . ▁ ▁External ▁links ▁Je pson ▁Man ual ▁Tre at ment : ▁Mad ia ▁ex igua ▁US DA ▁Pl ants ▁Profile : ▁Mad ia ▁ex igua ▁Flora ▁of ▁North ▁America : ▁Mad ia ▁ex igua ▁Mad ia ▁ex igua ▁— ▁U . C . ▁Ph oto ▁gallery ▁ ▁ex igua ▁Category : Fl ora ▁of ▁B aja ▁California ▁Category : Fl ora ▁of ▁British ▁Columbia ▁Category : Fl ora ▁of ▁California ▁Category : Fl ora ▁of ▁Oregon ▁Category : Fl ora ▁of ▁Washington ▁( state ) ▁Category : Fl ora ▁of ▁the ▁Cas cade ▁Range