천관산의 관속식물은 89과 221속 270종 47변종 6품종의 총 323분류군으로 구성되어 있었다. 특기할 식물로는 멸종위기야생식물 II급인 히어리 1종이 분포하였고, 한국특산식물은 6과 6속 5종 1품종 총 6분류군이 생육하며, 구계학적 특정식물은 I등급 29종, II등급 2종, III등급 6종, IV등급 2종, V등급 1종으로 총 40종의 식물이 분포하였다. 귀화율은 3.72%, 도시화지수는 4.14%로 확인되어 비교적 낮은 비율로 나타났다.
The number of vascular plants in Mt. Cheongwan was 323 taxa, which were consisted of 89 families, 221 genera, 270 species, 47 varieties, and 6 formas. Corylopsis coreana belonged in level II of extinction crisis wild plant were found. Six taxa of Korean endemic plants of 6 families, 6 genera, 5 species, and 1 forma were distributed. And also, 40 taxa of floristic specially plants of which 29 in level I, 2 in level II, 6 in level III, 2 in level IV, and finally 1 in level V were recognized. The ratio of naturalized and urbanization index was 3.72 % and 4.14 %, respectively.